Super Mario Bros. 2

Super Mario Bros. 2 would have been a sequel to the 1993 movie Super Mario Bros.

Plot
The plot is unknown.

Why it Was Cancelled

 * 1) The poor reception of the first movie killed any chances of a sequel being made.
 * 2) Many stars of the film called the first one "a nightmare."
 * 3) The first film failed at the box office.
 * 4) Bob Hoskins expressed no interest in returning
 * 5) John Leguizamo went on to do other projects.

Result
The film was cancelled, but a comic book titled Super Mario Bros. 2 was written and acts as a sequel to the movie.