Oprah Winfrey turns 70 with a $2.8 billion empire and things are clearer than ever. The presenter, businesswoman and actress is at a key moment in her career as producer of the new version of 'The Color Purple', based on the novel of the same name by Alice Walker.

The book had already been made into a film in 1985 by Steven Spielberg in a film for which Winfrey herself was nominated for the Oscar for best supporting actress. When Steven Spielberg called her for the role of the warrior Sophie in the 1985 film, she had never set foot on a movie set.