"The Magic Roundabout" was a popular stop-motion animated kiddy show in '70s England. Here, we have a brand new, computer-animated feature-film version (with a different title). In it, a heroic dog leads his friends on a quest to save his master from an evil wizard. Since Americans can't understand English accents, the original voice cast (Robbie Williams, Jim Broadbent, Bill Nighy, Sir Ian McKellen, Tom Baker and Kylie Minogue) has been replaced (with Whoopi Goldberg, William H. Macy, Jimmy Fallon and Jon Stewart). In any language, this haphazard assembly of cheap animation just isn't up to snuff.85 minutes G.