It'll be a happy New Year after all for Rolling Stones fans who haven't been able to get what they want -- tickets, that is, to the Stones' IMAX concert film at the Maryland Science Center.

The Science Center announced yesterday that it was extending the run of "At the Max" for four months, through May 25.

The 89-minute film on the Science Center's 55-foot-high by 70-foot-wide screen, which originally was to run only through Jan. 26, has sold out all but a couple of performances since it opened in mid-November. Most Friday and Saturday night showings of the film between now and the end of January are also sellouts.

In all, the Science Center has sold more than 12,000 tickets to the film, and has said its share of the proceeds would be used to fund its educational programs.

"At the Max," shot during the last leg of the Stones' "Steel Wheels/Urban Jungle" tour in 1990, is screened at 8 p.m. Thursdays, Fridays and Saturdays (with occasional later showings) and 7 p.m. Sundays. The film will also be shown at 8 p.m. and 10:30 p.m. Monday and at 9:30 p.m. New Year's Eve.

Tickets are $13 and are available at the Maryland Science Center box office or through TicketMaster at (410) 481-7328. For more information, call 685-5225.