Mara is also known for her charity work and oversees the charity Uweza Foundation, which supports empowerment programs for children and families in the Kibera slum in Nairobi, Kenya, one of the largest slums in Africa.
But, she insisted: 'There is a line, though'.
Covergirl: Rooney is interviewed by director Steven Soderbergh in the latest edition of Interview magazine Rooney's older sister is the actress Kate, and the young actress first started out as an extra in her movies.
The following year, she starred in the adventure drama film Trash 2014.
She made her screen debut in the slasher film Urban Legends: Bloody Mary 2005 and went on to have a breakout role in the independent coming-of-age drama Tanner Hall 2009 , followed by roles in the 2010 remake of A Nightmare on Elm Street and the biographical drama film The Social Network 2010.
She is also one of the representatives for the Humane Society of the United States.