Sam Taylor-Johnson says attention on age-gap marriage to Aaron makes her 'uncomfortable'

Marriage is a tricky business, and when it seems you've got the world's eyes on you, it will certainly be a lot trickier.

Sam Taylor Johnson's marriage to Aaron-Taylor Johnson is one of those, with the former saying the attention on their age-gap relationship has left her feeling 'uncomfortable'.

Aaron met Sam on the set of Nowhere Boy in 2009 - a film the latter directed.

The 15-year-old film was actually Sam's directorial debut, and at the time she was 42 years old, while Taylor-Johnson was 18.

With a 20+ year age gap, the pair have been met with a lot of criticism and trolls on social media.

Aaron Taylor-Johnson is best known for his role as Robbie in Angus Thongs and Perfect Snogging. (Paramount Pictures)

Ahead of her upcoming film, Back to Black, Sam,57, has been speaking about her relationship with Aaron, 33.

Speaking to the Hollywood Reporter about the attention her marriage receives, Sam said: "There are times where it’s uncomfortable. Most of the time we zone it out and stay pretty private. We tend to retreat. Kids and school runs keep you pretty grounded."

The pair have ignored all the criticism that has come their way over the years, as they tied the knot in 2012.

After getting married in the English county of Somerset, the couple have welcomed two daughters: Wylda Rae, 13, and Romy Hero, 12.

Aaron has also been speaking about his marriage recently as he said:

"What you gotta realize is that what most people were doing in their 20s, I was doing when I was 13," he told Rolling Stone UK.

"You're doing something too quickly for someone else? I don’t understand that. What speed are you supposed to enjoy life at? It’s bizarre to me."

The couple married in 2012. (Mike Marsland/WireImage)

Aaron discussed his relationship with Sam further in an interview with Esquire last year.

The Kick-Ass actor noted that he and Sam were 'really great at collaborating' when he met her in 2009, but said that's 'not why [he] fell in love with her'.

He added: "I’m trying to be as honest as possible. I've probably talked to you more about my kids and Sam than I have with anybody.

"I've got really nothing to hide, and I'm secure in what we have. But I'm not going to unlock things that are actually precious to me.

"I enjoy the normality of things, the everyday stuff. Getting my kids ready in the mornings, taking them to school and activities... That feeds my soul."