At Long Last Love is a train wreck. Peter Bogdanovich takes stars that can't sing (one of which he's in a relationship with at the time of the filming), and not only makes them sing, but he records them as they're performing for the camera. Nothing was done in a studio & dubbed. I don't know what Cole Porter did to piss Peter off...but Peter got revenge & then some by making this film.
It tanked with the critics, it tanked at the box office, and it's commonly named as one of the worst films of all time. It was so bad that Peter himself apologized for it's lack of quality. It stars Burt Reynolds, Cybill Shepherd (Peter's irl girlfriend), Madeline Kahn (the only one who can sing) & Duilio Del Prete...unfortunately for them.
Below I've embedded 1 video twice. Each time it starts at a different number from the film...I'm not going to recommend you watch them for once...but just in case you're curious...they're there.
Which sung by Cybill Shepherd
Friendship sung by all 4 stars