Half a House (1975)

Half a House (Is Better Than None) ran for a single week in Beverly Hills in December 1976 and managed to get Sammy Fain and Paul Francis Webster an Oscar nomination for their song "A World That Never Was", which appears to solid effect within the film. 

The movie, however... is terrible. Like, Half a House is not funny enough even for a situation comedy on television. In fact it approaches hilarity simply because it's so awful. 

This is a very rare, hard-to-locate movie, however. It's nearly impossible to find, but I watched it through the Cave of Forgotten Films. The man who runs that site is a mensch.