Kristen Stewart and Rupert Sanders
Twilight actress Kristen Stewart admitted to cheating on her co-star and boyfriend Robert Pattinson with film director Rupert Sanders in September after the pair were photographed kissing and hugging in Los Angeles. Stewart issued a grovelling public apology for her actions. "This momentary indiscretion has jeopardised 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," she said. While he's never made any public statement about his girlfriend's infidelity, Pattinson appears to have forgiven her and the couple have reconciled, much to the delight of Twilight fans across the world.