A lot of females in superhero movies fit this trope.
A good example is Alicia Silverstone's Batgirl in Batman & Robin, who acted as if she had something to prove to Robin and her character was seen doing such things as participating in a motorcycle race.
Ditto Black Widow in the Marvel Cinematic Universe, who is the sole female member of the original six Avengers but has very close ties to her comrades all the same.
Sif from the Thormovies is an Action Girl who hangs out with an all-guy group of warriors.
Billy Club (2013): Alison describes herself as a Tomboy, having been on the Little League team with Billy in their youth.
Dope: Diggy is best friends with Jib and Malcolm, two boys whom she always hangs out with. We never see her being with other girls. She's a Butch Lesbian who acts very much like them.
Cooper: You're just a really cool dude with long hair.
As Ever After begins Danielle tells her friend Gustave that no matter her gender she can "whip" him. By the time her stepmother arrives the girl has some mud on her but her friend is covered.
Hildy in His Girl Friday is the only woman working in the newsroom, but has just as much macho attitude as everyone else, and is consistently described by herself and everyone else as a "newspaperman".
Reporter Amy Archer in The Hudsucker Proxy is a fast-talking career gal and one of the boys on the job, though not tomboyish in appearance. Because she's attractive, she gets the occasional come-on but responds with an earth-shattering slap to the face.
Natalie Sue "Natty" Gann in The Journey of Natty Gann is introduced sneaking off with several boys to share a cigarette in the men's bathroom, and gets into a fistfight with one of them when he insults her father.
Kate the Blacksmith from A Knight's Tale. The Stinger shows her winning a farting contest over who buys the next round of drinks.
Princess of Thieves: Gwyn is happy running around along with men in the film and fits in perfectly, as a tomboy Action Girl (granted, she's disguised as male for most of it). Prince Philip even says she wants to be a man.
Rafiki: Kena only has friends who are guys (she plays soccer with them) before she meets Ziki, a woman her age, with the two dating.
Viola Hastings from She's the Man is a girl with a strict no ruffles policy and wants to join the boys' soccer team.
McCoy of Streets of Fire. Her part was actually originally intended for a man.
Amanda Bynes's titular character in Sydney White, who knows more about plumbing than she does about acting "ladylike".
Laure in the French movie Tomboy. For years, all of her friends have been boys (much to her mother's dismay), and on moving to a new neighborhood, she goes much further, introducing herself as Mikaël.
Mickey, in Trouble with the Curve, plays a mean game of bar pool, knows more about baseball than anyone else in the film, and can drink single-malt scotch straight from the bottle as a result of growing up hanging around baseball players.
Mari from Ultraman Cosmos: The First Contact, the prequel film to Ultraman Cosmos. She frequently hangs out with Musashi and her male classmates, isn't afraid to ride her bike alone through the woods at night, and takes part in activities usually for boys, such as camping, hiking, or sports. That being said, she is a Tomboy with a Girly Streak who likes wearing pink and has adorable Girlish Pigtails.
Wendy: Wendy always runs around with her brothers and other boys in the film, acting very much like them as a tomboy. The same goes for Cudjoe Head, as the only other girl there.
Anybodys in West Side Story (1961) would like to be this trope, but the guys don't accept her for the majority of the play.
