A completed screenplay of Warhead, a movie that would have returned Sean Connery to the screen as James Bond in 1977, has been discovered by British writer Robert Sellers, together with pre-production sketches and photographs, according to Scotland on Sunday. The screenplay, it noted, was co-written by Connery himself as well as thriller writer Len Deighton and Kevin McClory, who worked with Bond creator Ian Fleming on the screenplay for Thunderball. Connery would also have served as executive producer. The story about the fate of Warhead is to be told in a new book, The Battle for Bond, due to be published this week, the newspaper said. Sellers was quoted as saying that his source "actually had the original script. ... This wasn't a proposal or a suggestion, this was an actual script, a full-fledged, finished screenplay." He added: "You had an underwater base that rises out of the sea, you had helicopter attacks on the Statue of Liberty. ... It would have been the most extravagant Bond film ever."