Open Season 3 (movie, 2010)

Boog, Elliot, and their forest friends return with an all-new adventure, this time in a Big Top Circus! The comedy begins when Boog's pals choose their family obligations over the annual guy's trip, and a disappointed Boog decides to take a trip of his own, which leads him right into the middle of a circus ring...literally. When he switches places with a devious look-a-like circus grizzly and falls for an alluring Russian troupe member, he'll come to realize that maybe you don't have to choose between family and friendship after all.