This sex frolic made hot box-office properties of stars Dudley Moore and Bo Derek, who are both are their best here. Cuddly Dud plays a fortysomething bachelor who finds his perfect girl (the '10' of the title) in Bo and follows her everywhere - only to find that looks can be skin deep. There are lots of big laughs and Julie Andrews gives her all as Dud's put-upon girlfriend. Peter Sellers turned down numerous offers to play the lead, but put in a cameo as a jazz drummer in a restaurant scene, though this was cut from the film.