Movie star Keira Knightley wishes she had a companion whenever her glittering career takes her abroad, as she is sick of spending nights in lonely hotel rooms.

The British beauty may be one of the most popular actresses in Hollywood, but she insists worldwide fame has made her life more solitary than ever.

She says, "I travel alone and I enjoy a lot of it, but it also gets to the point when you can find yourself seeing the inside of just one too many lonely hotel rooms.

"My mother doesn't seem to mind traipsing after me, and I have been known to phone and say, 'If I can get you a ticket, will you come and save me?'

"The more well-known you get, the harder it can be to go out and explore."