At the beginning of 16 Wishes, Abby is so wrapped up in preparing for her Sweet 16 party later in the day that she skips breakfast, causing her stomach to grumble.
Ian's stomach grumbles twice in Alvin and the Chipmunks: Chipwrecked when Dave mistakes the sounds like an incoming helicopter.
This also occurs in Labyrinth, although it's not clear as to who it happened to. All that happens is we hear the growl, and then Sir Didimus responds, "Was that my stomach or yours, Ambrocious?"
This happens to Eli in the 2008 Swedish film Let the Right One In because she's a vampire and needs to drink blood to survive.
In Lilies of the Field, Homer Smith suffered this when the nuns were praying.
Gas and/or gut trouble
In Aliens Ate My Homework, Mickey's stomach rumbles quite loud after drinking a chemical to get Rod out of detention.
In Are We Done Yet?, Nick's stomach growls a couple of times while talking to Suzanne about Chuck due to a bellyache (according to him, thinking about Chuck is what makes his stomach hurt).
In the movie adaptation of The Art of Racing in the Rain, Enzo's stomach growls a bunch of times after he tricks Maxwell into feeding him a pepper, causing him to defecate all over his clean carpet as revenge for his callous attitude, much to his utter horror.
In Aquaman, Mera’s stomach gurgles because of air sickness while she and Arthur take a plane across the Sahara Desert.
Jessica gorges on a bunch of snacks at a dinner party in Backfire, ending up with a swollen, gurgling belly that startles her date when he sees it.
In Bridesmaids, Annie stupidly inflicts food poisoning on herself and the other ladies before they visit a bridal dress shop. The first signs that things are about to go nuclear are a couple of ominous stomach rumblings from Annie, Megan, Rita, and Lillian, and then the vomiting and worse begins.
This happened to Switchblade Sam in the 1993 film adaptation of Dennis the Menace after Dennis stuffed him up with beans.
In Dumb and Dumber, this happens to Harry due to Potty Emergency. (it happens twice! Once while he's in the car, and the second time, when he's in the hallway.)
Strangely, the sound effect used for Harry's stomach seems to be the roar of some sort of animal. (Most likely a dragon or wild cat)
In the Hong Kong horror comedy film Funny Ghost, the heroes fight a ghost by "feeding" her with more blood sacrifices than what's necessary, causing her stomach to bloat up and gurgle before she explodes.
In The Game Plan, Stella finds out the hard way that Fanny Burgers can give you gas by eating one, which causes her to unleash a loud fart in front of her friends that's preceded by an equally loud gurgle from her stomach.
In Holidate, after Sloane mistakenly takes a few laxatives instead of antacids during a costume party, her stomach lets out a continuous stream of noisy rumbles and growls while Jackson helps undo her corset and dress so she can relieve herself. Unfortunately, she has an accident right before she can make it to the toilet.
Near the beginning of Hunger Point, Franny binges on cookies after trying to stick to eating vegetables, causing her stomach to gurgle due to overeating. Thanks to her mother's overbearing standards for healthy eating, these binges are a somewhat frequent occurrence for her.
In I Hope They Serve Beer in Hell, Tucker and Connie drink beer with laxatives at a bar by some girls who got harassed by Tucker and wanted revenge on him. Later on while they are kissing towards their hotel room, both their stomachs rumble obnoxiously loud multiple times and the results wentabsolutely south.
In Jack and Jill, Jill's stomach growls five times when talking to Felipe after eating a bunch of chimichangas, which caused her to have a horrible case of gas, followed by diarrhea.
In Judy Moody and the Not-Bummer Summer, Judy and Frank want to ride the Scream Monster roller coaster, but Frank is carrying so much food that he's not allowed to ride it, so he eats all of the food quickly and is allowed on. After that, his stomach growls and rumbles obnoxiously, and then at the top of the coaster, he barfs all over Judy, much to her horror.
Happens to Marley near the beginning of A Little Bit of Heaven.
In Little Man, Calvin drinks an entire bottle of castor oil to help him release a diamond, that he swallowed earlier in the film, out of his system. It hilariously backfires with his stomach rumbling very loudly multiple times before he craps himself.
In Knives Out, Marta physically can not handle telling lies and will violently puke when she tries, which is often heralded by the loud gurgling of her upset stomach.
In The Man (2005), Andy Fiddler's stomach growls four times after eating red meat, including steak twice in Agent Derrick Vann's car and in the elevator at near the end of the movie, much to Vann's disgust.
In Movie 43, Doug's stomach gurgles and rumbles obnoxiously in the segment The Proportion after drinking a large meal and drinking a bottle of laxatives, definitely not a good idea for him to do to impress Julie.
In the first minutes of Neighbors 2: Sorority Rising, while Mac and Kelly having a hilariously sex fail, Kelly starts burping and her stomach rumbles repeatedly while learning out she's pregnant again... when, moments later, she vomits on Mac's face, much to his hilarious disgust.
In the Sex and the City movie, while the girls are vacationing in Mexico, Charlotte accidentally drinks some tap water while she’s taking a shower.note It Makes Sense in Context. In Mexico, tap water isn't recommended for drinking. Her stomach noisily gurgles a bunch of times as she rushes back to the hotel to use the bathroom. However, she can’t get in since the room is being cleaned and, as a result, ends up crapping her pants.
In Stand by Me, when Gordie tells the story about Lardass Hogan. Just before the projectile vomiting starts...
Slowly, a sound started to build in Lardass' stomach...a strange and scary sound, like a log truck coming at you at a hundred miles an hour.
In Treasure Buddies, Budderball's stomach growls due to gas.
In White Chicks, Marcus (disguised as Tiffany) eats a whole tray of cheese appetizers. However, he's lactose intolerant, so the appetizers cause his stomach to growl due to a need to use the bathroom.
Other
The Dutch film Beyond Sleep does an interesting variation of this: in one scene, Alfred has a dream in which he climbs a hilly landscape while the faint sounds of breathing and heart beats can be heard. He walks over to a hole in the ground where he hears running water and begins digging, each strike of his pickax causing the ground beneath him to audibly slosh for some reason. The hilly landscape turns out to be a nakedGiant Woman and the area where he was digging was her gurgling stomach.
In Charlie and the Chocolate Factory, loud, repetitive and ominous gurgling noises can be heard in Violet's stomach due to juices forming during her transformation into a blueberry.
In Meet The Applegates, Sally's stomach makes a gurgling noise (due to her being pregnant with an alien blob) when she undoes her dress, revealing her pregnant gut to other women at a future moms meeting.
Her stomach also gurgles a couple of times, moments before she gives birth.
Serleena's stomach can be heard noisily churning and sloshing with each step she takes, as it digests the mugger she's just Swallowed Whole in the opening of Men in Black II.
