A screening of the movie, “Miracle at St. Anna” — based on this year’s WestportREADS book selection — will take place Saturday in the Town Hall auditorium.

The screening of the movie, co-sponsored by the Westport Library and the Westport Cinema Initiative, will start at 4 p.m.

The movie, directed by Spike Lee, is based on the book of the same name by award-winning writer James McBride. It focuses on four African-American soldiers in the Army’s all-black 92nd Buffalo Soldier Division stationed in Italy during World War II. The soldiers get trapped behind enemy lines after one of them risks his life to save an Italian boy.

Trey Ellis, a novelist, screenwriter, playwright, essayist and associate professor at Columbia University, will lead a post-film discussion with filmmaker Douglas Tirola, whose movies include “Hey Bartender” and “Drunk Stoned Brilliant Dead: The Story of the National Lampoon.”

Tickets for the program cost $10, and can be purchased online at www.westportcinema.org. Tickets also will be sold at the door.

For more information, call 203-291-4800 or check www.westportlibrary.org .