Which 34-letter word is the title of a song from the 1964 film "Mary Poppins"?

In which 1964 film does a character say "Gentlemen, you can't fight in here! This is the War Room!"? Who wrote the music and lyrics for the 1964 musical "Hello, Dolly!"? Which band had its first U.S. No. 1 hit in 1964 with "I Want to Hold Your Hand"? Joe Frazier in 1964 and Wladimir Klitschko in 1996 won Olympic gold in which sport? Peter Sellers played which German-born scientist, one of his three roles in a 1964 Stanley Kubrick film? In which 1964 Elvis film does race car driver Lucky Jackson take a job as a waiter in a casino? In which 1964 film does Julie Andrews sing "Supercalifragilisticexpialidocious"? "I Started Out as a Child" was a 1964 comedy album by which future sitcom star?