The Vow (2012)

The movie begins with Paige Collins (Rachel McAdams) and her husband Leo (Channing Tatum) coming out of a movie theater. On their way home, when they stop at a stop sign, Paige unbuckles her seatbelt to lean over and kiss Leo. At that very moment, a truck rams their Saab 900 from behind and Paige crashes out through the windshield. Both of them are rushed to the emergency room, and as Leo, in a voice-over talks about how "moments of impact.. help in finding who we are" the movie cuts to how Paige and Leo first met. The scenes of how they courted, proposed and married are interwound with the present.

When Paige regains her consciousness, she thinks Leo is her doctor, implying her loss of memory. Paige verifies what her remaining memories are when she starts a conversation with Leo. She learns she has not lost all, except for the past few years of her life given she still remembers that she wanted to be an artist in high school. Paige is unable to figure out why she left law school.

Later her parents learn about the accident and come to visit her and it is for the first time that Leo meets them. They learn that the doctor recommends she return to her normal routine but her parents and Leo disagree about what her normal routine is at the present time. Leo tells Paige that she stopped talking to her parents before the accident mostly because her father insisted she attend law school while she attend art school. Paige is unable to understand why she broke off the engagement with Jeremy. Leo tries to persuade her to return home with him but she asks for proof such as a diary. He confirms that he does not know of such a diary existing before the accident.