Twisted

High schoolers Charlie Matthews, Martin Anderson, and Sharon Collins win a contest to play an interactive-interfacing type of medieval game as the avatars of their favorite characters. Their mission: fight monsters, storm the castle, and capture the evil king. Things go terribly wrong, though, when Charlie wakes up as Angella of Avernon, the lead female character in the game. While she happens to be the most powerful avatar around, he also finds out that they've been infected with a virus that will kill them outside the game.  Trapped and beset on all sides, Charlie has to deal with the sexism of the characters, circa 1430, Martin's distaste for his female form, and his feelings about becoming a woman.  In addition to fighting off the various monsters, Charlie tries to fight off his attraction to Sharon.and then he realizes that Sharon is attracted to him, which makes it even more confusing.
And when the deadly opponents in the game get the upper hand, Charlie must summon all of his love and courage to save the day and rescue Sharon.  Love is truly where you find it, and the gender of the one you love doesn't matter at all.