Bardem, Cruz double-date with Sean Penn

Javier Bardem and Penelope Cruz have apparently joined Sean Penn and an unknown woman on a double date.

The trio of Oscar winners were accompanied by Penn's mystery date on Friday night at the Four Seasons Hotel in Los Angeles.

A source told Radar Online: "Everyone seemed to be having a good time except Penn's date, who appeared slightly subdued."

Bardem and Cruz, who first met on the 1992 film Jamon Jamon, are rumoured to be engaged to be married.

Penn's estranged wife, actress Robin Wright Penn, resumed divorce proceedings in August.