If Indiana Jones and the Kingdom of the Crystal Skull turns out to be the kind of hit many industry observers expect, it's likely that a fifth Indy film will follow, the filmmakers told a news conference at the Cannes Film Festival on Sunday. Asked whether he'd make any more Indy sequels, Spielberg replied, "Only if you want more of them." He added, "That's the reason why we made this Indiana Jones," explaining that no one has ever asked him to make a sequel to 1941 or AI: Artificial Intelli gence. "So certainly we'll have our ear to the ground this summer and that will decide where we go from here." In an interview with FoxNews.com's Roger Friedman, Lucas added, "I haven't even told Steven or Harrison this. But I have an idea to make Shia the lead character next time and have Harrison come back like Sean Connery did in the last movie. I can see it working out." That may be the only way Harrison Ford might return. He has previously told interviewers that Crystal Skull will be his last film as Indy.