Keira Knightley reflects on smooch with Joe Wilkinson in Waitrose Christmas ad

Keira Knightley has revealed her screen kiss 'etiquette' as she reflected on smooching Joe Wilkinson in the Waitrose Christmas advert. The actress, 40, and comedian, 50, star alongside each other in the retailer's Love Actually-inspired four-minute mini-movie inspired by Richard Curtis rom-coms, The Perfect Gift. Joe is sweet-natured singleton Phil, who overcomes his shyness to woo an equally lovelorn Keira Knightley - played by Keira herself in cosy scarves and PJs.