The Spanish-born star spends so much of her life travelling across the world her body never knows what time of day it is.

She is quoted as saying: "I think you reach a point where you have so much jet lag that you can't feel the jet lag anymore. It's just like regular. I wake up and I really don't know which city I am in. I just get off the plane find some make-up and shower and here I am. It's a big adventure."

Penelope, 34, has recently been celebrating her nomination for Best Supporting Actress at this year's Oscars, for her role as Maria Elena in Woody Allen's latest film, 'Vicky Cristina Barcelona'.

Her close friend Salma Hayek held a lavish bash in her Hollywood Hills home, together with Hollywood producer Harvey Weinstein, to celebrate.

Guests included Penelope's co-star Scarlett Johansson and her husband Ryan Reynolds, Ashton Kutcher and his wife Demi Moore, and Michael Douglas and his wife Catherine Zeta-Jones.

Penelope also stars alongside Spanish actor Javier Bardem, who she has been dating since 2007.