Love is probably a key theme. Since it's based on a real story, it might show how love can endure through tough times. Another could be perseverance. If there were challenges in the real - life situation, the characters in 'The Vow' would have to persevere.
The Vow has roots in true events, but it's not a strictly 100% accurate portrayal. Filmmakers often blend reality with imagination to create a compelling story on the screen.
The main characters are a couple. The husband is very determined and loving. He refuses to give up on his relationship with his wife despite her memory loss. The wife, on the other hand, is in a very vulnerable state, trying to figure out her life anew while also having this man who claims to be her husband by her side.
The 'The Vow' is based on the real - life story of a couple involved in a cult - like organization. The woman gradually realizes the truth about the group they are in and tries to break free. It's a story of self - discovery and liberation from a controlling and harmful environment.