Pittsburgh Ballet Theatre presents "The Nutcracker" from Friday through Dec. 28 at the Benedum Center, 719 Liberty Ave. Curtain is at 7 p.m. Fridays and Saturdays, at 2 p.m. Saturdays and at noon and 4:30 p.m. Sundays. An additional 7 p.m. show will be presented on Dec. 23. Tickets range from $20.50 to $88.50 and are available at Theater Square Box Office, by calling 412-456-6666 or by visiting the Web site, www.pbt.org.