Sextette (1977) tells the story of Sir Michael Barrington (Timothy Dalton , born 21 March 1946), the sixth husband of Marlo Manners (Mae West, born August 17, 1893). This makes for a difference of a little over 53 years.
Reviewer 'Leofwine Draca' notes that West's age is never referred to in the script.
SEXTETTE is a throwback to the early years of cinema, where stars were larger than life and films threw in song and dance routines at regular intervals in the name of popular entertainment. It's also a vehicle for elderly starlet Mae West, at the tail-end of her career, playing a man-eater celebrating her wedding to a young toyboy (a visibly embarrassed Timothy Dalton). [...]
Clearly the director is in love with West and the film has been concocted as a tribute to her. But the format is very odd and old fashioned and West's appearance is rather shocking; her age is never mentioned so it's pretty weird to see her trying to play herself some fifty years previously.