Interesting quote from this site:
http://www.horsechannel.com/horse-fun/celebrities-who-ride-horses.aspx
[h=2]
Jamie Foxx[/h]
Foxx did all of the riding and stunts on his own horse, Cheetah, in the award-winning 2012 movie Django Unchained. In fact, when accepting the role, he insisted the director, Quentin Tarantino, find a role for his horse. In the movie, Cheetah is known as “Tony,” and he has a central role. Though a skilled rider, Foxx has admitted riding bareback at 28 miles per hour during shoots was scary, and that he even feared for his life at one point.