John Krasinski: 'You'd have to call my parents on why I'm charming'

John Krasinski has said that his parents would know more about why he is 'charming'.

Krasinski is currently starring in Ken Kwapis's Big Miracle, a story about a Greenpeace organizer (Drew Barrymore) and her ex-boyfriend (Krasinski) on a quest to save a family of gray whales trapped in ice off the Arctic Circle.

When Krasinski was asked by MTV about his "guide to being charming", he answered: "My guide? I'd think you'd have to call my mum and dad about that one.

"I think it's just, I don't know, I think, I don't know how to say why I'm - thank you for saying I'm charming by the way - I think at the end of the day I just have a lot of fun doing this."

"It's funny I've always had the analogy of a snow globe, that Hollywood is a snow globe," Krasinski continued. "No, it's true. If you shake it up, you can look at it and really enjoy it.

"But don't ever go in. Don't ever buy into it and be like, 'I deserve all of this!' because it can go away at any time, so just have a lot of fun."

The Office actor previously praised Barrymore on her professionalism during the filming of Big Miracle.

Krasinski is set to star alongside Matt Damon in a film that will mark Damon's directorial debut.

Big Miracle opens today in the US and on February 10 in the UK.

Watch the trailer to Big Miracle below: