Sean Connery back as James Bond? Not quite, says the British Broadcasting Corp. But Connery, 68, has been approached about playing 007’s long-time nemesis, Ernst Blofeld, in Sony Pictures’ upcoming remake of “Thunderball.” But it’s not clear if Sony will be allowed to make the movie. The studio is in a legal tussle with MGM over the rights to remake the 1960s classic. MGM is already at work on its next Bond movie, “The World Is Not Enough,” which will again star Pierce Brosnan in the title role.