"I did all of my own stunt work," Oprah tells ET's Nancy O'Dell. "I love saying that."
Oprah produces and stars in Selma which follows a crucial time in MLK's life when black marchers attempted to walk from Selma, Alabama to Montgomery in order to obtain voting rights in 1965. The journey took three attempts due to police resistance. Brad Pitt is also producing the film via his Plan B production company, which also produced 12 Years a Slave.
In the movie, Oprah plays little-known activist Annie Lee Cooper who became a catalyst for change during the Voting Rights Movement after her involvement in a brawl with authorities.
"I am trying to get in a movie where I don't hit somebody or I am hit," Oprah jokes, referring to her role in The Butler in which her character strikes co-star David Oyelowo. David also co-stars with Oprah in Selma, playing Martin Luther King Jr.
"I have been a beneficiary of the hit," David says.
According to David, Oprah was influential in him landing the role, saying, "She saw an audition tape of me as Martin Luther King and she became obsessed. From that moment on, I would get phone calls from far flung parts of the planet of people saying, 'I spoke to so and so, we are going to try to make this happen. This is happening!' I was just like, 'Oh, okay!'"
Selma opens in limited release Christmas Day.