COLIN ON THE RED CARPET AND CAMERON DIAZ'S MIRTH OVER COLIN FIRTH (EXPRESS CO.UK)

The Oscar-winner, 52, had to shoot a sequence where he is half-dressed in front of guests at The Savoy hotel in London.

“Being a film this wasn’t just a 20-minute thing,” he revealed.

“I had to walk around the hotel for days in this condition.

“I thought that Cameron Diaz, being kind and sweet, would have been on hand to tell me I had nothing to worry about and that my legs were magnificent.

“But the first time she saw me she burst into a spontaneous belly laugh. No one can really hurt you much after that.”

READ MORE:http://www.express.co.uk/features/view/359451