Carpool (1996)

Buttoned-down company man Daniel Miller (David Paymer), who reluctantly drives the carpool for his children and their friends when his wife is ill, stops to pick up some breakfast -- and some thugs try to carjack him. To the rescue comes Franklin Laszlo (Tom Arnold), the struggling manager of a carnival who had been considering whether to rob a bank, but instead has opted to rob the robbers. Due to complications, Franklin has to take Daniel and the whole van full of kids along for his getaway.