Premise: My Little Pony: The Movie is a 1986 American animated musical fantasy film based on the Hasbro toy line, My Little Pony. Theatrically released on June 20, 1986 by De Laurentiis Entertainment Group, the film features the voices of Danny DeVito, Madeline Kahn, Cloris Leachman, Rhea Perlman and Tony Randall.
Hypothesis: My Little Pony the movie was based on the Lego toy line