Aimed fairly and squarely at younger kids, this Belgian cartoon adventure is a sequel of sorts to 2010's A Turtle's Tale. Fast, fun and cutely done, it tells the tale of two turtles who wind up stuck inside a Dubai aquarium and have to pool resources with their fish-mates to escape. Accompanying adults may enjoy the nods to prison, war and mobster movies, and a soundtrack that includes Rock Lobster by the B-52s and, rather more oddly, tracks by Jimi Hendrix and the Clash. The 3D version of the film makes the most of the delightful seascapes, and is certainly the one to catch, but despite the U certificate, there are some scenes here that may scare more-sensitive little souls.