There were two . Airplane! (1980) & Airplane 2: The Sequel (1982)

The Movie that Pat Sajak was in was Airplane II The Sequel (10 Dec 1982)

ford edsel

Both movie and sequel are similar. A sequel IS a movie but is a second, third, fourth, etc. to a movie. For example, Harry Potter and the sorcerers stone is a movie, but chamber of secrets is the sequel to the first, and Azkaban is the sequel to Chamber of secrets and goblet of fire is the sequel to Azkaban and so on to the last HP movie.

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"The Godfather" was a movie. "The Godfather: Part II" was both a movie AND a sequel. A sequel is a continuation of a film story beyond the first film.

Trivia: "The Godfather: Part II" was the first sequel in Hollywood history to have '2' or 'II' in the title.

Juiskers II The Sequel with No Prequel - 2006 was released on:

USA: 22 April 2006 (Norman, Oklahoma)