Ira's last name is Chuvney in the film, Stone in the credits.
Lucas' last name is Nader in the film, Brickman in the credits.
There are a few brief inserts of The Lawrence Welk Show (1951), and Lawrence Welk's voice is heard saying "thank you, Myron" after a voice-over introduction. The announcer's voice was not that of Myron Floren, a band member who often provided transitions between musical numbers, but that of the regular announcer who opened each show.