Acting lessons for 'nervy' Oprah
Oprah Winfrey was so nervous about her role in her new film that she took acting lessons.
The star, who was nominated for an Oscar for her role in Steven Spielberg's 1985 film The Color Purple, also revealed she argued with the director of The Butler because she was so worried about her character swearing.
The film, which follows the rise of the civil rights movement in America to the election of Barack Obama through the eyes of a servant at the White House, is Oprah's first big screen role in 15 years.
Oprah, who plays the wife of Forest Whitaker's title character, said taking the role was a "big risk" and she asked an acting coach for help. She said: "I wasn't sure I could do it again".
Chat show host Oprah said director Lee Daniels told her to "use the f-word several times" in an emotional scene with Forest set immediately after the assassination of President Kennedy.
She said: "T he very first day I was there and I walk in with my script to have a meeting with Lee Daniels to say I really do have a problem with her saying these words and Lee threw me out of his office".
She said the pair "compromised" and changed the script but kept in some swearing, saying: "I kept saying she wouldn't do that and he kept saying you wouldn't do it, Oprah Winfrey would not do it, but Gloria is going to do it so Gloria ended up doing it.
"To this day I don't agree that Gloria did it but she did".
The film, whose cast includes Robin Williams and Alan Rickman as presidents Eisenhower and Reagan respectively , opens tomorrow.