BarnYard (2006)

When the farmer's away, all the animals play ... and sing, and dance. Eventually, though, someone has to step in and run things, a responsibility that ends up going to Otis (James), a carefree cow.

The “male” cows having udders was explained in the October 2006 issue of Nickelodeon's official magazine, “Nick Magazine”. In the letters page, one reader asked about the anatomically-incorrect cows and whether or not it was intentional or not, and the magazine explained that the movie's director "thought it would be funny for the male cows to have udders".

After the farmer has been knocked out and the animals attempt to make it appear as though a branch fell on him while reading against a tree, we see from the farmer's point-of-view that Otis places the book on the farmer spine-first with the open pages facing out. However, in the next shot the book is lying open on the farmer with the pages down and the spine facing away from him.