Montgomery County Agricultural Fair

Maryland's largest county fair offers entertainment, carnival rides, livestock shows and exhibits. Call for times. Tomorrow-Aug. 21. Montgomery County Fairgrounds, 16 Chestnut St., Gaithersburg. 301-926-3100 or www.mcagfair.com.

Outdoor Film Festival

Hollywood classics will be shown over the next 10 nights on a 52-foot screen on the grounds of Strathmore Hall Arts Center. The festival benefits National Institutes of Health children's charities. 8:30 p.m. tomorrow, "Star Wars." Saturday, "The Lord of the Rings: The Return of the King." Sunday, "Jaws." 10701 Rockville Pike, North Bethesda. Free. 301-816-6958 or www.filmfestnih.org. The remaining schedule:

Monday: "Casablanca"

Tuesday: "The Princess Bride"

Wednesday: "North by Northwest"

Next Thursday: "Seabiscuit"

Aug. 20: "Chicago"

Aug. 21: "Back to the Future"

Aug. 22: "Wizard of Oz"

'The Wiz'

The Musical Theatre Center presents "The Wiz," based on "The Wonderful Wizard of Oz" by L. Frank Baum. The production features a mix of rock, gospel and soul. 7:30 p.m. tomorrow, 2 and 7 p.m. Saturday, 2 p.m. Sunday. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. $16.50; $14.50, children, students and seniors. 240-314-5004 or 240-314-8690.

From left, Jared Albert, Javaun Dixon, Eban Logan and Jason Beekman star in the Musical Theatre Center's production of "The Wiz." The update of "The Wizard of Oz" runs this weekend at the F. Scott Fitzgerald Theatre in Rockville.