Based on the 60s cartoon series, this live-action feature takes certain liberties, adding a silly backstory to explain the title canine's superpowers. The TV show was mildly subversive, with humor that children and adults could enjoy on different levels, but the movie strives for a blander, family-oriented middle ground. As the voice of Underdog, Jason Lee pales in comparison to Wally Cox; Peter Dinklage is properly menacing as the evil Simon Barsinister; and Patrick Warburton, while forced to perform some lowbrow physical comedy, is the funniest thing in the movie as Barsinister's thuggish henchman, Cad. Frederik Du Chau (Racing Stripes) directed; with James Belushi and Alex Neuberger. 84 min.