Keira Knightley and Joe Wilkinson in Waitrose's new Christmas advert WaitroseJoe Wilkinson has opened up about how he and Keira Knightley bonded over the awkwardness brought about by their on-screen kiss while shooting their new Waitrose Christmas ad campaign. AdvertisementThe ad takes the form of a mini rom-com, ending in the pair sharing a brief kiss, which Joe spoke about during an interview with The Times published over the weekend. Admitting he’d only taken part in two on-screen kisses at the time, he remarked: “I was like, ‘Keira Knightley has kissed probably, I don’t know, 50 people on screen, I’m guessing. “Then I just went, ‘I think this is weird, kissing is weird’ and she went, ‘It is, isn’t it? It’s really weird’.