Which 2007 Mario game is cited as a core inspiration for the film?

Super Mario Galaxy, the 2007 Wii game, is cited as a core inspiration for The Super Mario Galaxy Movie. The film borrows the game's cosmic premise and expands it into a feature-length animated adventure involving galaxies, Lumas, Rosalina, and the Comet Observatory.

Released in November 2007, Super Mario Galaxy moved Mario away from the primarily flat or side-scrolling spaces associated with earlier entries and placed him on spherical planets linked by star systems. Its gravity mechanics, observatory hub, orchestral presentation, and emotional story about Rosalina helped distinguish it within the franchise.

The movie is not limited to that one game. It also draws from Super Mario Galaxy 2, released in 2010, and includes characters or ideas connected with other Nintendo properties and Mario eras. That broader approach explains why Mario Kart Wii, New Super Mario Bros., and Super Mario Sunshine are plausible distractors but not the cited core source.