In Forgotten Lady (1975), Janet Leigh plays Grace Wheeler, a once great film star and dancer. Clips from this film are shown and it is referenced as one of the best films that Wheeler made with her dance partner Ned Diamond (John Payne).
This movie is featured significantly in the plot of a "Colombo" episode in 1975 where Janet Leigh stars. She is a fading musical actress hoping to reinvigorate her career by producing a new musical. But in order to do so she needs to kill her rich husband. Her "alibi" is that she was watching this film on a projector at the time that her husband supposedly "committed suicide". Watching her slip out of her cover-up and into a black leotard cat burglar outfit is priceless.