Mulligan promised herself as teenager she would work with DiCaprio

Carey Mulligan made a promise to herself as a teenager that "one day" she would get to work with Leonardo DiCaprio.

The 29-year-old actress starred alongside the 40-year-old actor in 'The Great Gatsby' in 2013 and has admitted she had always dreamed of working with the hunky star and found him incredibly professional and helpful.