Scorch Supernova is a big dumb musclebound hero, and his older brother Gary is a nerdy stay-at-home who masterminds things from mission control (both are blue aliens, by the way). But when Scorch is captured during a mission to Earth, Gary reluctantly has to try to be the hero.

This is a colourful CGI sci-fi movie for kids, but with enough in the script to keep parents entertained (some well-tooled gags for grown-ups who like their sci-fi pop up throughout the movie's lengths). It goes without saying that animation, design, and voice characterisation are all first rate. It is a reflection on how far CGI features have come since Shrek that a film like this can be regarded as simply OK, par for the course: even as recently as 15 years ago it would have been a knockout.