the former governor and actor arnold schwarzenegger, who is speaking out about the scandal he brought on himself. Tonight, what he's now saying about his wife, maria shriver. Here's abc's david... See More
the former governor and actor arnold schwarzenegger, who is speaking out about the scandal he brought on himself. Tonight, what he's now saying about his wife, maria shriver. Here's abc's david wright. If my life was a movie, no one would believe it. Reporter: Certainly no one would expect this movie to end up with husband and wife back together. The former bodybuilder and his kennedy bride. Not after maria shriver found out arnold schwarzenegger fathered a son with the family maid. So, you lied to her. You could say that. Reporter: But in his first interview since the scandal broke, schwarzenegger tells leslie stahl of "60 minutes" he's hoping to win her back. I think it was the stupidest thing I've done in the whole relationship. It as terrible. I inflicted tremendous pain on maria. And unbelievable pain on the kids. Reporter: It's part of a massive comeback effort for the aging action hero. Meaningful change takes balls. Reporter: This week, he opened the new schwarzenegger institute at usc. I know what's coming. Reporter: He's getting set to release several new action movies. Next week, a new memoir, "total recall." I went from being the terminator to being the governator. Reporter: Schwarzenegger says she hasn't read the book. She knows that it's about my whole life and that I would not write a book and kind of leave out that part and make people feel like, wait a minute, are we just getting a book about his success stories and not talk about his failures? Reporter: She hasn't said much about his failures, either, beyond pointed remarks like this at her father's funeral. Perhaps his greatest accomplishment to me was showing my brothers how to treat a wife. Reporter: Schwarzenegger was in the audience that day. Apparently he heard her loud and clear. David wright, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.