In an annual Washington tradition that looked earlier this year as if it might not happen, the 10th “Screen on the Green— film festival will begin July 20.

Washington residents are invited to gather on the National Mall between Fourth and Seventh streets Mondays at sunset for free screenings of film classics on a giant 20-by-40-foot screen.

This year’s festivities kick off with the 1977 science fiction classic “Close Encounters of the Third Kind,— an early hit for director Steven Spielberg.

The subsequent films, in order, will be “Dog Day Afternoon— (1975), an adaptation of a real-life Brooklyn bank heist that stars an incendiary young Al Pacino; “On the Waterfront— (1954), a portrayal of Marlon Brando taking on powerful unions that garnered eight Academy Awards; and “Rebel Without a Cause— (1955), which solidified James Dean’s reputation as an icon of reckless, searching youth.

HBO, Comcast and the Trust for the National Mall sponsor the event, and Warner Bros. Studios will provide classic cartoons before the films. Earlier this year, HBO announced it would withdraw funding for the popular series, but it later reinstated the series with the help of Comcast and the trust.