It’s looking good for Jack Bauer. Kiefer Sutherland was spotted enthusiastically discussing the planned “24” movie with director Ron Howard, who produced the hit Fox series, over lunch at Junior’s in Times Square this week. A spy told us that Kiefer, who dined on a cheeseburger, was “excited about how much more they could do for ’24’ with a movie format than they could ever do in the TV series. The lunch lasted a long time, and both stars were friendly with the waiters, many of whom are fans of ’24.’ ” Kiefer’s Broadway show, “That Championship Season,” opens for previews Wednesday at the Bernard B. Jacobs Theater, next door to Junior’s.