David Beckham just signed a $250 million soccer contract -- probably not the best time to be horsing around and risking a serious leg injury!

Becks is playing "Sleeping Beauty" hunk Prince Phillip in a series of Disney ads. During a photo shoot, his trusty steed reared -- almost throwing the soccer star from its back!

Luckily, Beckham's equestrian skills are as good as his footwork, and he was able to hold on for dear life.

The ads, shot by famed photographer Annie Leibovitz, also feature Beyoncé Knowles and Scarlett Johansson, and can be viewed online now.