- Actor-Shared Background: Alice and her portrayer are Canadian.
- AFI's 100 Years... 100 Movie Quotes:
- #54, "There's no crying in baseball!"
- Billing Displacement: Tom Hanks, Geena Davis, and Madonna are listed as the three main actors in promotional material, and home video, despite the fact that the characters Dottie and Kit are clearly the main stars, and Lori Petty has a much larger role than Madonna (Although Madonna also contributed the movie's theme, "This Used to Be My Playground").
- The Cast Showoff: Madonna gets to show off her The '40s dancing skills.
- Completely Different Title: In Japan, the film was released as プリティ・リーグ (Pretty Leagues).
- Corpsing: Lori Petty is genuinely cracking up during the beauty school sequence. Penny Marshall found it endearing, so she kept it in.
- Dyeing for Your Art: Lori Petty is a brunette and had to dye her hair red to look more believable as Geena Davis' sister.
- All actresses took actual baseball training for six days a week, for several months. Even Geena Davis, among the last to be cast, mastered baseball skills within a few weeks.
- Enforced Method Acting: Penny Marshall had the actresses play some unscripted innings to pad out the baseball scenes. Given all the training they'd been through they were more than capable.
- Executive Meddling: The producers wanted Jimmy and Dottie to hook up in the end. They also pushed for Dottie to save Jimmy from his drinking. The director responded with a single scene on the bus where Jimmy ends the conversation saying it was "time for a drink." Dottie takes his flask and hands him a soda.
- Font Anachronism: The movie is set in 1943. The "Catch A Foul-Get A Kiss" banner is printed in the font "Banco", which was created in 1951.
- Irony as She Is Cast: Lori Petty was actually a faster runner than Geena Davis, so she had to slow down to let Dottie beat Kit.
- Just Train Wrong: The train scenes feature the Nebraska Zephyr, a streamlined train that would never have operated cross-country to either Oregon or Colorado as shown in the movie. Ditto the Frisco steam locomotive in the station scene, which operated only in the midwest and south.
- Playing Against Type: Tom Hanks to some extent. Jimmy Dugan eventually proves to have a heart of gold, but he's arguably the sleaziest character Hanks had ever played at the time.(Jimmy has just signed a baseball for a little boy)
Little Boy: [reading] "Avoid the clap, Jimmy Dugan." Cool!
Jimmy Dugan: That's good advice!
- Real-Life Relative: Penny's brother Garry Marshall as Walter Harvey, and daughter Tracy Reiner as Betty "Spaghetti" Horn.
- Recycled: The Series: Had a six episode run in 1993 as a half hour Sitcom. Garry Marshall, Jon Lovitz, Megan Cavanagh (Marla Hooch) and Tracy Reiner (Betty Horn) reprised their roles from the movie. Penny Marshall directed the pilot, and Tom Hanks directed an episode.
- Retroactive Recognition: Téa Leoni played the Racine first baseman, three years before Bad Boys.
- Shown Their Work: The real members of the AAGPBL did have to attend charm school. Additionally, the song they sing in the locker room (and again at the reunion) is "Victory Song," and it's the official song of the real league.
- Even 1992 audiences thought the scene of everyone making fun of Kit for not being able to finish the game showed that the filmmakers clearly didnt understand baseball. However up until the 1970s or so the starting pitcher was expected to finish it!
- Throw It In!: During his scene on the farm, Jon Lovitz kept getting interrupted by the cows' mooing, prompting him to ad-lib, "Will you shut up?!"
- Kit cracking up during the beauty school sequence and Dottie reprimanding her was actually Lori Petty genuinely losing it and Geena Davis chastising her. Penny Marshall found the moment endearing and akin to their relationship, so she left it in.
- What Could Have Been: In the original cut, there was a subplot where Marla Hooch got married right after the Western Union scene. She tells the girls she's pregnant, but asks them not to tell the coaches who would kick her off her team, and the girls make a promise not to slide into second when she's playing. Then in a game, Dottie's so distracted she doesn't realize Marla's playing second, and slides hard enough into her stomach to cause her to go to the hospital. The scene where Dottie is weeping was originally supposed to be her guilt over what happened with Marla, rather than a direct segue from Betty's tragedy.
- And she's distracted because of another dropped subplot—growing romantic tension with Jimmy. They've shared a kiss—this and the fight with Kit are what spurs her decision to quit the team—and have been arguing about it, which is why Dottie is oblivious to the warnings about Marla. Her tears are guilt over injuring Marla and her slight infidelity.
- Lindsay Frost originally signed on to play Mae, but dropped out when her TV pilot was picked up.
- Debra Winger was originally set to play Dottie, but dropped out once she found out Madonna was chosen as one of her co-stars.
- Brooke Shields, Laura Dern, Sean Young, Demi Moore, Jennifer Jason Leigh, Ally Sheedy, and Kelly Mc Gillis were also considered for the role of Dottie.
- James Belushi was considered for the role of Jimmy Dugan.
- Moira Kelly and Molly Ringwald were considered for the role of Kit. (Kelly had to drop out when she injured her ankle filming The Cutting Edge.)
- Marisa Tomei, Farrah Fawcett, and KD Lang were considered for roles as well.
- Written-In Infirmity: A consequence of Method Acting: None of the actresses wanted a stunt double, so they did many of the stunts themselves. Their injuries were written into the film. So when you see Rosie O'Donnell wearing a knee-brace, or Renee Coleman sporting a bloody bruise the size of a frying pan on her thigh, that's because they really did hurt themselves. Coleman later recounted that her bruise didn't fully go away for over a year.
- However, many of the baseballs used—such as the scene where Dottie catches a fast-pitch from Doris bare-handed—were tennis balls made to look like baseballs to avoid hurting the actresses unnecessarily.
Trivia / A League of Their Own