Mr. Grieves mentions the film and quotes "Toto, I don't think we're in Kansas anymore" and "There's no place like home".
Mr. Grieves mentions the film and quotes "Frankly, my dear, I don't give a damn".
Henley buys a set of Casablanca tin figures at the House of Ushers. Mr. Grieves says he believes Casablanca to hold the record for the most quotable lines in the history of cinema, several of which he and Henley recite.
When Mrs. Haplin introduces Tommy Conroy as the new sheriff, he quotes the "head, tail, the whole damn fish" line and then explains to the bemused audience that it's a Jaws reference.