According to Halliwell's they appeared together 36 times.Their first film 'One night in the Tropics'in 1939 was in a supporting role.
Lou Costello finally made one on his own 'The Thirty - foot Bride of Candy Rock in 1959
They made 36 films as a partnership, plus one by Lou Costello in 1959. There was a compilation film released in 1965. They also made 52 episodes of the Abbott and Costello show. They split up as a partnership in 1956 due to conflicts of opinion, waning popularity, and having to settle an enourmous back tax bill.