Peter Sarsgaard believes Maggie Gyllenhaal is a "great leader"

Speaking to PEOPLE, Peter explained: "This is a huge movie. She was leading a set of hundreds of people.

"It's my wife up there, it's my wife darting out of the tent and come on over and talking to this actor and darting back in. She's such a great leader and she has such a great mind."

Peter believes that he and his wife have a very complementary partnership.

The actor said: "I think every couple is as unique as every person. I think it would be a lot more difficult to be married to someone who had a more consistent type of employment in one place."

Meanwhile, Peter recently claimed that acting has helped him to become "a more fully evolved person".

Peter grew up in "pretty closeted parts of America" and his immediate family members were often reluctant to express their emotions.

The Hollywood star - who has been married to Maggie since 2009 - told the Observer newspaper: "I lived with a lot of very sensitive people.

"Mental illness was a real thing in my house. Around those people, in those types of potentially volatile situations, you want to keep everything chill. And I'm very good at it.

"I spent a lot of my time as a kid trying to read the minds of people who didn't know their own minds. It's a skill I developed. I'm frequently thinking about what other people are thinking."