The Vow: true story of Kim and Krickett Carpenter

The Vow is a 2012 romantic drama film directed by Michael Sucsy, starring Channing Tatum, Rachel McAdams, Sam Neill, Scott Speedman, and Jessica Lange.

Based on the true story of a newlywed couple recovering from an accident that puts the wife in a coma. She wakes up with severe memory loss and can't remember any of her life with her new husband... so he has to fight to win her heart all over again. 

Synopsis:
A car accident puts Paige (McAdams) in a coma, and when she wakes up with severe memory loss, her husband Leo (Tatum) works to win her heart again.