This film marked the last time that Charles Chaplin would be directed by someone other than himself. That is, if you don't count Chaplin's cameo appearance in Show People (1928), directed by King Vidor.
The first feature-length comedy ever made.
According to Buster Keaton, Roscoe 'Fatty' Arbuckle directed several parts of the movie but was uncredited for his work.
"Tillie's Nightmare" is a musical that opened at Herald Square Theatre on Broadway in New York City on 5 May 1910 and closed 9 July 1910 after 77 performances. Marie Dressler originated her role as Tillie in the show.