Can anyone hel me find the title of a jewish movie [details enclosed]?

its on WGN right now, its not on the schedule, it starts with a boy like in cl, and hes doing a voiceover as a man saying how he always thought that the entire world was jewish, and he realized that the other kind of the world was about 99% and then later there's like some cinderella girl, dressed in a cinderella costume...