Mario and Sonic: End of Worlds is an animated movie created by Nintendo, featuring the characters Mario and Sonic as the main protagonists. The movie was written by Finn Tracy and it was released in December 2014.
The plot was actually planned for a game, but the idea was turned into a movie and brought to the big screens. There might come a sequel in 2015, but details about it are still unknown. The writer has announced that he has plans for a possible sequel.