The Cuckoo Patrol (1967)

Freddie & The Dreamers star as the Cuckoo Patrol, a group of Boy Scouts who are eager to do good deeds, but always wind up doing them the wrong way, and frequently get into trouble as a result. Their Scoutmaster has tasked them to take a cart full of camping supplies to a train station. What seems like a relatively easy chore for most Scouts turns into an adventure for the Cuckoo Patrol. They soon lose their way, then involve themselves in other escapades, leading to the group filling in at a professional wrestling match, mingling with a bunch of Girl Scouts of whose doings their Scoutmistress greatly disapproves, and unknowingly aiding a couple of robbers with their heist.