Gwyneth Paltrow celebrated her 40th birthday on Thursday on a yacht in Italy. It's been a long time since the actress got her big break in Hook straight out of high school. Paltrow celebrated alongside husband Chris Martin and friends in Portofino by sipping red wine and enjoying dinner on the deck of a yacht. The Avengers star just wrapped up a busy week with an appearance at a Stand Up To Cancer event in London, projects with her GOOP organization, and a joint project with Nicole Richie on her handbag collection, House of Harlow. Happy belated, Gwyneth!