Movie mogul George Lucas is slowing down the pace of the fourth INDIANA JONES movie because he knows Harrison Ford isn't as fit as he once was. The producer accepts 64-year-old Ford isn't quite as sprightly as he was in previous action films, and he doesn't want to try to convince movie fans that an ageing actor can still sprint from danger. Lucas says, "He'll play his age in this movie with what's appropriate. The chases are more suspenseful than speedy. "Like the ball rolling in the first film - it's not that he's running that fast, it's that there's a giant ball coming at him." But Lucas insists he and director Steven Spielberg won't be pulling any punches: "He (Jones) will get beat up, which is a tradition for us."