Ferdinand the Bull

Based on the book, The Story of Ferdinand by Munro Leaf. Little Ferdinand would much rather smell the flowers than butt heads with the other cows. When the men come to choose the bull for the fight, Ferdinand accidentally sits on a bumblebee. The men see him dash around madly, so they pick Ferdinand. Comes the bullfight, and all Ferdinand cares about is the bouquet of flowers a woman tossed to the matador.
Winner of an Academy Award for best animated short in 1938.

Plot summary: IMDb