The psychological thriller Irresistible (2006) is simply irresistible. It stars Susan Sarandon as the suspicious wife of Sam Neill, whom she believes is having an affair with his hot coworker, Emily Blunt. But are her suspicions true or is she losing her mind to paranoid delusions? The movie keeps you and Susan guessing, though not without some sweet temptations to help you draw your own conclusions. Case in point, a dark but exceedingly erotic sex scene with Emily Blunt nude. She is writhing in shadows--still it makes viewers' blood boil. But wait until those shadows part to reveal her plump pair! Again, it's irresistible.