Cardcaptor Sakura - in spite of the intentional Cliffhanger as Sakura jumps across the wide gap between her and Syaoran, it is already clear that the couple (and possibly the other characters, too) get to live happily after the story. The Powerof Friendship and the Power of Love prevail! One of the very few anime shows that actually have true happy endings.
Every Don Bluth movie too. In fact, Bluth has gone on record to say that as long as the story ends Happily Ever After, then kids can handle whatever dark and depressing stuff happens beforehand (and in Bluth's earlier movies, happen it does.)
WALL-E: Played straight as the love-struck robots kiss at the end while the humans rediscover their humanity. The epilogue shows human civilization advancing back to full glory.
Rio, as per tradition of most of the known western animated films.
Just about every Adam Sandler movie has this. Even if the film doesn't end with him "getting the girl," it will at least end with some kind of happily-ever-after epilogue (case in point: Big Daddy).
Back to the Future both subverts and plays this straight. We can assume Marty's parents lived "happily ever after" once Marty altered their meetup in 1955... if only Doc's time machine would quit getting in the way.
The film adaptation of Stardust seemed to be headed to a "happily ever after" ending, but the ending turned out to be even happier, as the lead couple get transformed into stars when they reach old age, enabling them to truly live "happily ever after" (or at least for several billion more years).
This is actually a Double Subversion: the narrator notes that "no man can live forever . . . except he who possesses the heart of a star. And Yvaine had given hers to Tristan completely."
Subverted in The Princess Bride: the narrator's father said that the characters 'lived happily ever after,' but when the narrator gets around to reading the book himself as an adult, he finds out that it's actually an open ending with the success of the escape left in doubt. The movie adaptation, however, plays this trope straight.
Rather jarringly done in the epilogue of the final Animorphs book: while three of the surviving Animorphs go off into space to save Sixth Ranger Ax and ultimately face down a Bolivian Army Ending, Cassie gets to stay behind on Earth and enjoy the peaceful new life she's made for herself.
Subverted in Candide. The title character has reunited with his love and Pangloss goes on another diatribe about how this is the best of all possible worlds. Only the girl is sunburned, leathery, and peevish from outdoor labor and, with all the tragedy Candide gamely suffers throughout the story, he politely tells Pangloss to shove it.
On the other hand, the point of the book is that "If this is not the best of all possible worlds, it is at least not the worst", and Candide manages to find some satisfaction in his new life. "We must all tend our garden."
Most Xanth books end like this, at least for the major protagonists, though even people who've had their happy endings sometimes get into an adventure again, usually because of an unrelated problem.
The Dark Tower plays with the phrase: when Susannah enters the door in front of the Dark Tower and finds herself in another alternate version of New York City, she meets alternate version of Eddie and Jake, and in this universe they apparently are brothers and they already know her. It's stated that "Will I tell you that these three lived happily ever after? I will not, for no one ever does. But there was happiness. And they did live."
At the ending of The Eyes Of The Dragon there is a similar statement: "Did they all live happily ever after? They did not. No one ever does, in spite of what the stories may say. They had their good days, as you do, and they had their bad days, and you know about those. They had their victories, as you do, and they had their defeats, and you know about those, too. There were times when they felt ashamed of themselves, knowing that they had not done their best, and there were times when they knew they had stood where their God had meant them to stand. All I'm trying to say is that they lived as well as they could, each and every one of them; some lived longer than others, but all lived well, and bravely."
Twilight: the last line of the last book is ""And then we continued blissfully into this small but perfect piece of our forever." 'nuff said.
Breaking Dawn ends with all of vampire Bella's problems solved as she heads home to have sex with her eternally young and attractive husband. And despite several "battles" throughout the four books, all of the main characters survived.
The final chapter is actually titled "The Happily Ever After".
Parodied in Kim Harrison's "The Hollows" series, in which the saying is revealed to be a translation error. It was apparently meant to say, "and they lived happily in the ever-after."
Daddy-Long-Legs and its sequel give the impression that the heroine of each book will be thus rewarded; indeed, the sequel verifies that the original heroine has as close to a purely happy ending as a girl can possibly get in 1910's New York.
The Hobbit notes, shortly before the end, that Bilbo "remained very happy to the end of his days, and those were extraordinarily long." In a Continuity Nod in The Lord of the Rings, Bilbo mentions that he'd decided on using a similar phrase ("he lived happily ever afterwards to the end of his days") as the ending of his book.
"But where will they live," Sam wonders under his breath in his case and Bilbo and Frodo's Eressëa - at least for a while.
"'The term is over: the holidays have begun. The dream is ended: this is the morning.' And as He spoke He no longer looked to them like a lion; but the things that began to happen after that were so great and beautiful that I cannot write them. And for us this is the end of all stories, and we can most truly say they all lived happily ever after. But for them it was only the beginning of the real story. All their life in this world and all their adventures in Narnia had only been the cover and the title page: now at last they were beginning Chapter One of the Great Story which no one on earth has read: which goes on for ever: in which every chapter is better than the one before."
After enduring avalanches of angst and complications from life-changing injuries to divorces to deaths in the family to Unrequited Love throughout the show's eleven-year run, Frasier ends with Martin remarrying, a still-Happily Married Niles and Daphne having their first child, and Frasier finally, finally finding a great woman who he loves and who loves him back. It took years of catastrophes and hijinks, but it's gratifying to see the Crane men finally hit the jackpot.
Good Times: Keith gets another shot at pro football when the Bears give him a contract, enabling him and Thelma to move to a swanky condo. Thelma is pregnant and she and Keith invite Florida to live with them. Michael moves to a dorm on campus. Willona is promoted to head buyer at the boutique and she and Penny also move to the same condo but on a different floor. JJ creates a comic book character called DynoWoman and she is modeled after Thelma. He is given a huge advance, enabling him to move out of the projects as well.
Roswell has an epilogue tacked on to the series finale, revealing that Liz and Max get married and the gang is doing well even though they are permanently on the run from the government. The last line is "All I know is that I'm Liz Parker, and I'm happy."
Skins: The S4 finale very strongly implies that Naomi and Emily will be this, having finally realised they're each other's One True Love.
There's even a sign hanging in Naomi's room in S4 that says "... and they lived happily ever after."
The Steve Harvey Show: Steve follows Regina to her new job in California, Ced and Lovita win the lottery just as Lovita goes into labor, and Romeo, Lydia, and Bullethead graduate from high school and are accepted at college.
A core element in many religions (such as Christianity and Islam) is the promise of an infinitely perfect afterlife for believers. This element is not found in Judaism, which predates both of the aforementioned religions in the development of Abrahamic monotheism.
A classic subversion is found in the play The Fantasticks. Act One concludes with a classic Happy Ending, with the fathers ending their "feud" and approving their children's romance after the boy rescues the girl from a (staged) abduction. Act Two starts as reality begins to set in.
Into the Woods has a similar setup to The Fantasticks: Act One concludes with a classic Happy Ending, but then there's Act Two...
"No royal curse, no Trojan Horse, And there's a happy ending, of course!
Well it's a happy ending for everyone except poor Senex, who's still stuck with his shrewish wife Domina.
Parodied in The Stoned Guest by P.D.Q. Bach. This "half-act opera" would end with a Kill Em All, except then the entire cast inexplicably rises again to sing a final chorus. It even ends on the words, "Happy ending!"
In Tales Of Symphonia Dawn Of The New World (also known as Tales of Symphonia: Knight of Ratatosk), there are three possible endings. In one, the "good ending" (dubbed "the mega-happy ending" by the author of this statement) Emil and Marta end up together, through a complicated series of circumstances. Emil's personality is separated from that of Ratatosk, and that personality is allowed to live his life as a human.
The same applies to Cave Story. Aside from the "good" ending, there is also a Guide Dang It "best" ending, which saves two NPC's who otherwise die, stops the island from falling, and offers redemption to the Quirky Miniboss Squad. The final cutscene shows Curly, Quote, and Balrog flying off into the sunset, resolved to find someplace with a beautiful view to live the rest of their days.
You get to joke about the possibility with Liara in Mass Effect 2 at the end of Lair of the Shadow Broker if you romanced in first game. Unfortunately, it won't ever happen. While there are several possible endings to Mass Effect 3, Happily Ever After just isn't an option. (This fact was one of the many reasons why there was so much hate for the ending of the third game.)
Liara: If this all ends tomorrow Shepard, what happens with us.
It is not confirmed, but it is heavily implied in Super Paper Mario that there was a happy ending for Lord Blumiere (Count Bleck) and Lady Timpani. At the end of the game (after the staff credits) there is a scene showing what appears to be a man and a woman on a peaceful, green hill in a bright meadow, the man wearing a hat that looks much like the one worn by Bleck. Most players assume that it's them, and that they are now living happily in a an undisclosed place.
Bob and George ends when all the characters who were supposed to die in the Cataclysm, plus Bob and George who were supposed to go home and be miserable and die young respectively, fake their deaths, move to Acapulco, and live happily ever after.
Mike Nelson has inverted this trope a couple of times in his Riff Trax of movies. One example is his Riff of Road House where he goes into detail during the closing credits about how all the character's lives go horribly wrong after the movie's ending.
This happened earlier in Mystery Science Theater 3000's sporking of Soul Taker, where Crow and Servo refuse to accept the movie's Happily Ever After and instead offer a Downer Ending where the protagonist ends up in jail. Mike asks if they aren't being a little doom-and-gloom, and they sarcastically suggest a Sugar Bowl ending that is literally rainbows and unicorns. Mike asks if there can't be a middle ground and they say nope, it's either prison or unicorns.