I last watched one of my all time most adored films: Punch-Drunk Love. The scoring, cinematography, and overall story elements (which portray a strange fellow fixated on a few peculiar schemes, with intermittent explosive disorder [it seems], largely misunderstood by his 7 sisters, coworkers, and everyone else, as he becomes the victim to a fraudulent and bullying scheme and how he deals with it, while also finding love) completely capture me. Barry Egan is a huge influence on the expression of my identity, and has been ever since I first watched the film.
another with this same effect is Lost in Translation. It was an easy pick with my love of the Japanese and their language and culture. Throw in Bill Murray and Scarlett Johansson and you have a total win.