Redmayne was desperate to land a part when he tried out for Hooper's 2005 Tv movie Elizabeth I, which starred Dame Helen Mirren.
The role required a certain amount of equestrian ability and Redmayne admits he regretted lying about his horse-riding skills
after he was almost killed during a dangerous battle scene.
He tells Deadline.com, "I first met Tom on an audition for the HBO miniseries Elizabeth I, and he asked, 'Eddie, have you ever ridden a horse?' To which I said, 'Yes.'
"Two weeks later, Helen Mirren is playing Elizabeth, there are 47 stunt horsemen behind me, I've got spurs attached to my feet and I'm like, 'At what point do I admit having never ridden a horse?'
"They call 'Action!' and I almost kill myself. Tom shouts, 'You're a b**ody liar, Redmayne!' It has taken seven years for him to consider employing me again!"
Hooper went on to cast Redmayne as Marius in his latest movie, the big-screen adaptation of hit Broadway musical Les Miserables.