The Iron Rose (1973, Jean Rollin)

Couple meets at a wedding and chase each other around giggling, then have a nice time nude in a crypt. When they return to the surface, the cemetery is closed and deserted and their attempts to leave end up in loops, until he gets shitty, starts slapping her around and trashing graves. They make up, and get busy on a pile of bones. I still don’t love these vibes-only Rollin movies but don’t mind rollin’ with one every couple of years. The actress would go on to almost produce a Tara Reid movie, while he would star in City of Pirates and Tale of Springtime.