It's a retread of Carry On Camping only with caravans as the usual array of characters ripe for fun picking innuendo laden shenanigans. Plot for what it's worth has a bunch of Carry On holidaymakers caravanning next to a Roman excavation site being run by Prof Anna Vrooshka (Elke Sommer) and Prof. Roland Crump (Kenneth Williams). Chaos inevitable ensues.
The absence of Sid James, Charles Hawtrey, Hattie Jacques and Terry Scott was always going to be felt (they had all left the franchise by this time), but Williams, Bernard Bresslaw , Kenneth Connor, Joan Simms and Peter Butterworth plough on stoically with the thin formulaic screenplay. Windsor Davis supplements them but he's no Sid James.
The series would trundle out two more films in the 70s before the ill advised comeback movie in 1992 (Carry on Columbus), one of which was the dreadful Carry on England. "Behind" isn't an awful movie as it does have its moments, such as the by-play between Sommer and Williams, and Bresslaw's henpecked husband act. It's also a very good snapshot of the era with budget holidays pointing to the unsteady political climate, while the sexual aspects reek of a time well left behind – but those attitudes did exist back then.
Passable Carry On fare but carrying with it the sadness in knowing the series was long past its sell by date. 6/10
