Hau drauf, Kleiner (1974)

A die-hard pacifist, the slacker Charly has absolutely no interest in the German Armed Forces and takes off again as soon as he’s drafted. To make some money, he and his buddy Henry try their hand at selling a hair growth product, but during a sales trip, he runs into a hot dog vendor and detective and teams up with him to hunt down the gum-chewing phantom.

Comedy