The Vow

The Vow is a movie based on two people who meet each other spontaneously and fall deeply in love with one another. Although they are very much alike now, she comes from a totally different background than he does. After a car accident, she loses the part of her memory that includes him and their marriage. He does his best to try to recreate things and for her to fall back in love with him.
I would say this movie is like Sternberg's Triangular Theory of Love because when they were in love and when he was trying to make her remember him they had a lot of intimacy and passion within their relationship. They were very physically attracted to one another and it started to build on their closeness. Once she falls back in love they reach the decision/commitment aspect of it. I would also say that they show a bit of Lee's Styles of Loving because they have this powerful physical attraction (like I said before) and they have a sort of Ludus playful love that is really fun and they can make each other laugh and be goofy before she got into her accident. He tried to bring that out in her while he was getting her memory back as well.