Carry On Behind (1975, dir. Gerald Thomas)

Archaeologists stay on a caravan site while completing their dig. Late series entry and part of the holiday cycle of 70s Carry Ons, riffing on 1969’s Carry On Camping. Familiar ingredients and jokes are reused: by now the formula is worn thin, though a couple of strong gags sneak by the slapstick and leering.

Here’s the trailer.

Dad’s Army (1971, dir. Norman Cohen)

The formation and later misadventures of a Kent coastal village’s Home Guard platoon during WWII. Opened-out version of the BBC sitcom (filmed between series 3 and 4): while not as subtle as the TV version, nevertheless an affectionate portrait of class in wartime with a peerless cast of character actors.

[no trailer online that I can find!]