Warner Bros. Pictures is developing a feature version of “Yogi Bear,” the classic Hanna-Barbera cartoon, and Surf’s Up co-helmer/co-writer Ash Brannon is attached to direct.Joshua Sternin and Jeffrey Ventimilia, who executive produced “That ’70s Show” and are writing the feature Tooth Fairy for Fox, are penning the screenplay. Donald De Line is producing via his De Line Pictures; Karen Rosenfelt is also producing. The project is planned as a live-action/animated hybrid along the lines of Fox’s 2007 hit Alvin and the Chipmunks. Much of the movie will be live-action, but Yogi Bear and sidekick Boo Boo will be done in CG. Yogi’s exploits take place in Jellystone Park, where he and Boo Boo get into good-natured mischief and must elude their nemesis, Ranger Smith.