HONORING THE FALLEN Theatre 315 and Grendel Productions present “The Fallen 9/11,” by Robert Marese. The show follows the lives of an attorney and firefighter on the morning of September 11, 2001. All proceeds from the production will be donated to the Let Us Do Good Children’s Foundation. Dunsten Cormack directs. Through Saturday, September 24, Tuesday-Friday, 8 p.m., Saturday, 3 p.m., Theatre 315, 315 W. 47th St., between Eighth and Ninth avenues, 212-868-4444, $20 general, $10 students.

BROOKLYN REMEMBERS The Brooklyn Arts Council presents a seminar on the tradition of memorial arts in Brooklyn, including a piece that commemorates the Brooklyn residents who died in the attacks of September 11, 2001. Audience members are encouraged to participate in the discussion. Saturday, noon-2 p.m., Brooklyn Historical Society, 128 Pierrepont St., between Clinton and Henry streets, Brooklyn Heights, Brooklyn, 718-625-0080, free.

THE RAIN IS GONE The September Concert Foundation hosts its annual concert series in parks across the city to celebrate peace and community. At 3 p.m., musicians sing along to Johnny Nash’s optimistic anthem “I Can See Clearly Now.” Sunday, noon-7 p.m., venues vary, largest concerts at Morningside Park at West 113th Street, and the Triad at 158 W. 72nd St., between Columbus and Amsterdam avenues, 212-333-3399, free. For a full schedule, go to www.septemberconcert.org.

DAY AFTER The Crossroads New York Cultural Center presents a conversation about the effects of September 11 on the film industry. A screening of the drama “September 12th” follows. Director John Touhey will be on hand for a question-and-answer session. Sunday, 2 p.m., Lighthouse Theatre, 111 E. 59th St., between Lexington and Park avenues, 718-833-7374, free.

TRIBECA MEMORIES NYC Discovery Tours leads a tour of TriBeCa billed as a “September 11 Remembrance Tour.” There are stops at St. Paul’s and St. Peter’s churches, which doubled as aid stations for rescuers, and other historic sites. The tour concludes at ground zero. Sunday, 2:30 p.m., 212-465-3331, call for reservations and meeting place, $13.

TWO YEARS LATER Richard Karz’s documentary “9/11/03: A Day in the Life of New York,” which chronicles the lives of New Yorkers from the Reverend Al Sharpton to Salman Rushdie on the second anniversary of the terrorist attacks, is screened downtown. Sunday, 6:30 p.m., Two Boots Pioneer Theater, 155 E. 3rd St., between avenues A and B, 212-591-0434, $9 general, $6.50 members, seniors, and students.

To submit an event for consideration for the Calendar, please wire the particulars to calendar@nysun.com, placing the date of the event in the subject line.