Asa Butterfield

Asa Butterfield was just 14 when he played Hugo Cabret, the star of 'Hugo'.

Asa, 26, admits he didn't really appreciate that he was working with a legend of cinema when he made the 2011 film, and admits he would be "nervous" to work with Marty again now.

He told Deadline: “I’ve been really lucky with the people I’ve been able to work with and it is mad when you say it out loud. Especially when I was a kid, nothing is such a big deal, but when I get older I realize ‘Wow!’ It possibly helped because I wasn’t nervous, like on the set of Hugo. If I’d worked with Marty now, I’d have been bricking myself before coming on to set, but I had that child-like nonchalance.”