"Brad and I have our issues, but if the characters were even remotely close to our problems we couldn't have made the film," she told the publication. Jolie says she and Pitt referred to the script as the "crazy one" for years.
The movie did however, help the couple explore a roller coaster of human emotion.
"This is a story about a relationship derailed by loss, the tenacity of love and the path to recovery and acceptance," Jolie and Pitt told ET in a joint statement. "It has been a privilege to explore these universal human experiences with such a generous and talented cast and crew."