A Slippery Rock Christmas dinner theater begins at 5:45 p.m. Saturday at Highland Presbyterian Church, 310 Franklin St. The free dinner includes lasagna, salad, bread and pie. The show is an old time radio show of Dorothy Sayers' play, “He That Should Come.” The dinner/show is being hosted by Grace Anglican Church. There will be childcare provided during the play for children age 5 and younger. To make reservations, call 724-421-9362 or send e-mail to ChristmasDinnerTheater@gmail.com.

Comtra Theatre, Route 19, Cranberry Township, presents “It's a Wonderful Life” through Saturday. Curtain is at 7:30 p.m. Fridays and Saturdays. Tickets are $12. Call 724-591-8727 or 724-591-5383 or visit www.comtraplayers.com.

“Miracle on 34th Street The Musical,” based on the classic movie, will be staged at 7:30 p.m. Friday and Saturday and at 2 p.m. Sunday at the Barrow-Civic Theatre, 1223 Liberty St., Franklin. Tickets are $18 for adults, $16 for senior citizens, and $12 for students and children younger than 12. For tickets call 814-437-3440 or 800-537-7769 or go online at www.barrowtheatre.com.

The Conservatory Theatre Company is presenting “The Crucible” through Sunday in the Rauh Theater, in the Pittsburgh Playhouse, 222 Craft Ave.Tickets are $18 to $20. Call 412-392-8000 or visit www.pittsburghplayhouse.com.“Flashdance — The Musical,” the stage adaptation of the 1983 film, runs Jan. 1 to 6 at Heinz Hall, 600 Penn Ave. Tickets are $20 to $65. Call 412-392-4900 or visit www.TrustArts.org.CLO Cabaret presents “A Grand Night for Singing,” Broadway's tribute to Rodgers and Hammerstein, through Jan. 20 at the Cabaret at Theater Square, 655 Penn Ave. Curtain is at 7:30 p.m. Wednesdays, 1 and 7:30 p.m. Thursdays, 7:30 p.m. Fridays, 2 and 7:30 p.m. Saturdays and 2 p.m. Sundays, with some exceptions. Tickets are $34.75 to $44.75 and available by calling 412-456-6666 or visiting www.CLOCabaret.com.