Jinx (2007)

When nerdy second grader Eleanor tries to join a schoolyard game a bully named Rachel jinxes her Unable to speak until someone says her name Eleanor sets off on a madcap quest to break Rachels diabolical spell before the 300 bell rings As she navigates the cutthroat world of second grade Eleanor seeks help from a stern math teacher a deranged abstract artist and a clueless father with disastrous results