From Comics To Toons: Popeye's 20th Anniversary (1954)
It had actually been 21 years since Popeye made his film debut. Famous Studios & Paramount made up for that in 1954 with "Popeye's 20th Anniversary", which uses footage from two other shorts. It still comes down to the usual rivalry between Popeye and Bluto, who makes a tactical error at the wrong time.
Just not sure who was impersonating stars like Jimmy Durante and Dean Martin & Jerry Lewis, though.
Of course, as fans know, Popeye made his official debut in Thimble Theatre in 1929, so his 90th anniversary is just three years away!