Back at the Barnyard (2007)

What do farm animals really do when the humans aren't looking? Just ask Otis, a carefree "party cow" who inherited the job of keeping the barn… and it's residents… in order. But instead of responsibility, Otis is driven by an insatiable need for fun, fun, fun. Along with his barnyard friends Pip, Pig and Freddy, Otis will stop at nothing in his pursuit of a good time… which usually means a few close calls with humans and other threats to what really goes on behind closed barndoors.