FILE - In this Nov. 16, 2011 file photo, British actor Robert Pattinson, left, and US actress Kristen Stewart arrive at the UK film premiere of "Twilight Breaking Dawn Part 1" at Westfield Stratford in east London. On Wednesday, July 25, 2012, Kristen Stewart and director Rupert Sanders are apologizing publicly to their loved ones following reports of infidelity. (AP Photo/Joel Ryan, File)
LOS ANGELES, Calif. - Kristen Stewart has apologized publically to "Twilight" co-star Robert Pattinson following tabloid reports she had a brief but steamy affair with her "Snow White and the Huntsman" director Rupert Sanders.
The 22-year-old actress issued her apology to People Magazine on Wednesday. It was quickly followed by an apology to People from the 41-year-old Sanders to his family. Stewart has been in a relationship for several years with Pattinson. Sanders is married and has two children.
Stewart said her "momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob." Sanders said he is "utterly distraught about the pain I have caused my family."
Us Weekly published photographic evidence of the affair in their latest issue, with the two in steamy and compromising embraces.