Sky High (2005 movie)
Magenta, whose power is to become a rat, climbs into the system and tries to disable it, otherwise the school will fall from orbit and everyone will die.  Penny, a cheerleader who can make multiple copies of herself, surrounds Layla.  Layla does not want to fight, but when they hit her, she uses her power to make all the plants come out and bind the cheerleaders down.