Penelope Cruz shows off Josh Harnett!

"Penelope and Josh were cute, and just a lovely couple," a source tells Star.

Ashton Kutcher, Demi Moore, Tobey Maguire, James Franco, Leonardo DiCaprio, Ashley and Mary-Kate Olsen, Naomi Watts, Lucy Liu, Liev Schreiber, Chris Rock and Lenny Kravitz attended.

Meanwhile, Penelope Cruz is to become the latest star to design for a high street retailer - she'll be the new face for Mango's new fashion collection.
The movie star will be designing a fashion range for the Spanish company alongside her sister, actress Monica Cruz, following the likes of Madonna and Kate Moss who have worked with H&M and Topshop.

A spokeswoman at Mango says the Cruz collection will feature 1950's style classic garments and "red carpet glamour", which will take inspiration from their "eclectic" wardrobes reports Female First.