At Long Last Love (20th Century Fox, 1975)
Writer/director Peter Bogdanovich wanted to revive, recreate and pay homage to the 1930s dance/musicals of the Astaire and Rogers era.
He failed spectacularly. At Long Last Love featured 16 songs (by Cole Porter) of live-recordings (not pre-recorded; no lip synching!) Unfortunately, with the choice of casting, they should have used lip synching. Burt Reynolds
and Cybill Shepherd were said to be atrocious as singers and dancers (off-key and clumsy). The plot consists of three mismatched couples and their ensuing romantic entanglements and complications as they change partners.
If you want to see this debacle of a movie, good luck; the film is virtually non-existent for viewing. It has never been released on video or DVD to date. If you get lucky (or unlucky depending on your perspective), you may be able to find a bootleg copy. At Long Last Love was released around Easter time at Radio City Music Hall in 1975 and was so soundly (and wholly) blasted by critics that Bogdanovich took out a full-page ad in the Hollywood Reporter to apologize. 20th Century Fox spent $6 million on At Long Last Love only to make a paltry $1.5 million back.