Micmacs (2009)

A man and his friends come up with an intricate and original plan to destroy two big weapons manufacturers. Avid movie-watcher and video store clerk Bazil has had his life all but ruined by weapons of war. His father was killed by a landmine in Morocco and one fateful night a stray bullet from a nearby shootout embeds itself in his skull, leaving him on the verge of instantaneous death. Losing his job and his home, Bazil wanders the streets until he meets Slammer, a pardoned convict who introduces him to a band of eccentric junkyard dealers including Calculator, a math expert and statistician, Buster, a record-holder in human cannonball feats, Tiny Pete, an artistic craftsman of automatons, and Elastic Girl, a sassy contortionist. When chance reveals to Bazil the two weapons manufacturers responsible for building the instruments of his destruction, he constructs a complex scheme for revenge that his newfound family is all too happy to help set in motion.

Source: TMDb