Mia Goth is "incredibly proud" of her husband Shia LaBeouf.

Mia Goth and Shia LaBeouf

Mia Goth and Shia LaBeouf

The 23-year-old actress tied the knot with the 'Transformers: Dark of the Moon' star in Las Vegas last October, and has praised her spouse as a "brilliant" actor and has a "great respect" for him.

She told 'Entertainment Tonight': "He's definitely one of the most brilliant actors, for sure. I'm incredibly proud of him, and I have great respect for him."

However, the 'A Cure for Wellness' star insisted she likes to keep her private life to herself and refused to indulge any further details of their relationship.

Meanwhile, 30-year-old Shia previously admitted marrying Mia was "the best thing he ever did for himself".

Asked how married life is, he said: "I love it, man. That's one that's not been a f**k up, that's been the best thing I ever did for myself.

"I'm like a serial monogamist. I think it's cause I'm deeply insecure. Once you get vulnerable with a person, that's it. I've never been a one night stand guy."

And Shia - who first met Mia on the set of 'Nymphomaniac: Volume II' in 2012 - doesn't regret his decision to get hitched as he knows the blonde beauty is the one for him.

He added: "I think I was after something real substantial this time, I'm 30 years old. And you know when you know."

Meanwhile, the 'American Honey' star previously quipped he has been "lied to his whole life" because he loves being married to Mia.

He said: "It's better on the other side. I've been lied to my whole life. You always hear these people who are all cynical, like, 'Ah, man, once you get married everything changes.' But for the better though!

"I'm about to create some new ones [traditions]. My mom will be involved; her mom will be involved ... I'll probably have to do Hanukkah and Christmas and Kwanza and the whole nine."