Robert Pattinson's beau Kristen Stewart has admitted to an affair with Snow White and the Huntsman director Rupert Sanders.
Kristen Stewart has confirmed reports that she has cheated on her boyfriend with Sanders, who is married to British Vogue model Liberty Ross.
'I'm deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected,' said Stewart in a statement.
'This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I'm so sorry.'
Robert Pattinson and Kristen Stewart have been dating ever since starring in the hugely successful film franchise 'Twilight' together.