Paul Rudd talks about returning as Ant-Man in Avengers: Doomsday, the time he and Adam Scott cold-called Billy Joel to recreate the Bosom Buddies intro and the time Jack Nicholson played his dad in a movie. The Tonight Show Starring Jimmy Fallon. Stream now on Peacock: https://bit.ly/3gZJaNy Subscribe NOW to The Tonight Show Starring Jimmy Fallon: http://bit.ly/1nwT1aN Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35ET/10:35c Get more The Tonight Show Starring Jimmy Fallon: https://