From Wikipedia:
A music video for the song was directed by Michel Gondry, features Natalie Portman and Mackenzie Crook and is choreographed by Blanca Li. It begins with a postman (Crook) delivering a left-handed mandolin to McCartney. The postman invites himself in for a cup of tea, then he opens the package revealing the mandolin. As soon as McCartney starts playing the song, a ghost (Portman) emerges from the package and starts dancing. More extravagantly dressed ghosts emerge from other places (an open drawer, the fireplace, the washing machine etc.) and dance around McCartney while he plays and sings in various rooms. The ghosts also play tricks on the postman, floating around him and making him levitate, which scares him away from the house. During the song’s second-to-last verse, Portman steals McCartney’s mandolin, which reverses the situation, making her come alive while turning McCartney into a ghost. He chases her and the other ghosts until she slips back into the package, dragging McCartney in with her as well. As the song ends, the ghosts’ world (inside the package) is revealed to be a wild party, where all the ghosts, now fully alive, have lots of fun (the postman is there as well), while McCartney plays bass, accompanied by a drummer (Gondry). The final shot of the video is of the postman’s van, left empty on the road. The video was posted exclusively on YouTube on 22 May 2007. It is now available on the DVD compilation Michel Gondry 2: More Videos (Before and After DVD 1) and on the Deluxe CD/DVD Edition of McCartney’s album Memory Almost Full.
