X-Men: Days of Future Past star Hugh Jackman admits he felt like an old man on set.

The 45-year-old actor explained that he felt older than his years when he told his co-stars Nicholas Hoult and Jennifer Lawrence, who are both in their early twenties, that he had watched the first film as a child.

Speaking to ELLE magazine, Jackman said: ''The first day we shot in the X-Mansion, Nic said, 'I'm sorry, but this is just so cool because I saw you walking down these halls when I was 10 years old.' And I said, 'I know that's meant as a compliment, but it still stings a little, mate.' ''

Jackman further revealed that he felt like the dad on set, saying: ''That bunch [Lawrence, Hoult] were close on set, all partying together, shooting each other with BB guns in the trailer park.

''I thought, 'I'm not going to shush them, because if I tell them to stop they'll just shoot at my trailer window. So I stayed inside - that's when you realise you're the old man now.''