Oprah Winfrey returns to the big screen

US talk show host Oprah Winfrey is starring in her first major film role in 15 years in a new film called The Butler.

She co-stars with the Oscar-winning actor Forest Whitaker in the story of a fictional White House butler who served during seven presidencies.

Talking Movies' Tom Brook sat down with Winfrey to find out why she wanted to play the part.