This boisterous inaugural feature from Sony Pictures Animation won't give Pixar any sleepless nights, but it does have a simplistic appeal. Co-directed by The Lion King film-maker Roger Allers, it's a familiar, computer-generated eco-fable in which domesticated grizzly bear Boog (voiced by Martin Lawrence) sees his pampered existence as a mountain-town tourist attraction cut short when he befriends a mischievous deer (a fantastic Ashton Kutcher). In a hilarious set piece, the duo cause so much mess in a convenience store that Boog eventually ends up released back into the wilderness - three days before the hunting season. What follows is a predictable lesson about man's destruction of nature, boosted by quick-fire banter, brightly coloured visuals and plenty of scatological humour for children. The pace slackens in the second third, hampered by narrative clichés and some weakly stereotypical supporting characters, though it picks up with gusto for a final imaginative animal/hunter showdown.

Boog, a domesticated 900lb. Grizzly bear finds himself stranded in the woods 3 days before Open Season. Forced to rely on Elliot, a fast-talking mule deer, the two form an unlikely friendship and must quickly rally other forest animals if they are to form a rag-tag army against the hunters.