Planet

Planet was a planned film based on Captain Planet with a script written by Michael Reaves based on a story by Nick Boxer and Mario Pilusio.

The tone of the film was supposed to be darker than the 1990–1996 animated TV series, set in a post-apocalyptic future. The script was lost in 1996 when Turner and Warner Bros. merged.

Plot
The plot is currently unknown.

Why It Was Cancelled

 * 1) The crew thought that the film's tone was too dark for children, so the crew cancelled it.
 * 2) The script was lost sometime in 1996 when Turner and Warner Bros merged.

Result

 * The film was permanently cancelled after Warner Brothers and Turner Entertainment merged together.