Mr. Wise Guy is a 1942 American film starring The East Side Kids and directed by William Nigh.

Plot

In New York, the East Side youth gang, consisting of: Muggs McGinnis, Danny Collins, Glimpy Stone, Scruno, Skinny, and Peewee are falsely arrested on the wharf because the truck they are playing in was stolen. They are remanded to Wilton Reform School, where Muggs, the wise-cracking leader of the gang, is dubbed "Mr. Wise Guy" by the brutal guard Jed Miller.