Unrelated, but I was reading about Atalanta from Greek mythology and she'd be perfect material for a tomboy movie. Here's a brief summary leaving out some details:
>She's left to die in on a mountain by her father for not being the son he wanted
>A she-bear picks her up and raises her until some hunters continue the raising
>Atalanta turns into an amazing huntress, killing centaurs and completely incapacitating a boar that was wreaking havoc on a village
>She's also pretty hot, yo, but she hates the boys
>She makes peace with her parents and lives with them
>All the boys in the yard continue to like her milkshakes so she tells them she'll marry whoever beats her in a race
>Of course, all lose because she's so good
>One cunning guy gets Aphrodite's help (she likes taming young mistresses) by getting some golden apples that no one can resist
>He uses them in the race and wins
>Marries her, impregnates her, and has a son who may potentially have a God as a father instead, but it's inconclusive - this happens a lot in Greek mythology