'I can tell him he got a cold from the King!': Ben Affleck reveals his son Samuel had a play date with Prince George and Princess Charlotte - MailOnline

With two Oscars and a string of blockbuster movies on his CV, Ben Affleck could be considered Hollywood royalty.

But during his most recent trip to Britain, the Argo star revealed that his youngest son had a brush with two real-life royals.

Appearing on the Graham Norton show, the 44-year-old joked that his youngest son, Samuel, had caught a cold after playing with Prince George and Princess Charlotte.

In Friday night's installment of the chat show, the actor recalls how during a trip to London he took his son to an indoor play park that was being frequented by the two young royals.

Recalling one very wet day during the trip, Ben said: 'When it was raining I took my youngest to one of those kid’s indoor play parks. 

'It was pretty empty and then I noticed this weird vibe from the other grownups. They were all very well dressed and they had earpieces and I thought, "For a kids’ place this is tight security!"'

Laughing at the thought, he added: 'I was the very last person to realise that Prince George and Princess Charlotte were in there playing with my kid.'

Though it was a truly memorable moment it seems that the impromptu royal play day left Samuel a little worse for wear, with Ben adding: 'I can now tell him that he got a cold from the King of England!'

Samuel is Ben's youngest child with his ex-wife Jennifer Garner; the film star's also have two daughters: Violet, 10, and seven-year-old Seraphina.