The Fox Chase is an Oswald the Lucky Rabbit animated silent short released on June 25, 1928 in America.
[2] A comic running-of-the-fox with Oswald atop a reluctant horse against a smarter-than-usual fox.
Horace is stubborn and doesn't want to move on just to make fun of Oswald while the poor rabbit gets hurt.
Oswald even so tries two times to mount the horse jumping on his back but Horace prevents it and he gets up higher.
The fox goes straight and the two run after it, until Horace has his body upside down, minus his legs.
Oswald puts the parts of Horace that were upside down to the correct side and they continue in search of the fox, until they trip over a huge rock and change places.
It was actually the fox in a skunk costume, nobody won the competition and she starts laughing and the episode ends.