- Actor Allusion: Paul Dano passes the hat.
- All-Star Cast: Daniel Craig, Harrison Ford, Olivia Wilde, Sam Rockwell, Clancy Brown, Keith Carradine.
- Box Office Bomb: Budget, $163 million. Box office, $100,240,551 (domestic), $174,822,325 (worldwide).
- Creator Killer: The film put a nice dent in Jon Favreau's career, but he would redeem himself in the tentpole film industry with the remake of Walt Disney's Classic The Jungle Book in 5 years. In between those two films, he starred in and directed the low-budget Chef!, which was met with a positive reception from critics.
- Dueling-Stars Movie: Harrison Ford vs. Daniel Craig. Indiana Jones vs. James Bond. 80's Action Hero vs. 00's Action Hero. One can only wonder how cinema screens don't catch fire when those two guys are in the same shot.
- Executive Meddling: DreamWorks executives wanted the film to be shot in 3D, but Favreau refused since he wanted to shoot it in film and not be converted into 3D, and compared it to black-and-white films being colorized.
- Fake American: Daniel Craig.
- Genre-Killer: Eventually became this to the sci-fi/fantasy western with The Lone Ranger (Disney almost canceled that movie when this one bombed) note , sending it back to the grave that 1999's Wild Wild West dug for it.
- Hilarious in Hindsight: The idea of Cowboys vs Aliens is Older Than They Think, going by this◊ old strip from The Far Side.
- Playing Against Type: Harrison Ford is a Corrupt Hick who rules the town with an iron fist.
- Also Clancy Brown, normally a villain actor, playing a "good guy" in a doctor encountered early in the film. It's one of only several of these types of roles he's done, with Captain Black from Jackie Chan Adventures note , Sergeant Zim in Starship Troopers and Rayden note in Mortal Kombat: Defenders of the Realm note being some of the few other good examples.
- Star-Derailing Role: The film did not do any good for actor Noah Ringer as a year before, he starred as Aang in The Last Airbender, the film adaptation of Avatar: The Last Airbender, which was disowned by longtime fans of the source material and the creators themselves. note As this film was a flop, he hasn't appeared in a film since.
- What Could Have Been: Jake Lonergan was originally written as a former Union army gunslinger named Zeke Jackson with Robert Downey Jr. playing the character. After Downey left, the character was rewritten after Daniel Craig was cast.
Trivia / Cowboys & Aliens