Summertime in D.C. brings three things: heat, interns, and outdoor movies. The First Baptist Church at 17th and O Streets NW is providing one of those, sponsoring Movies by Moonlight, a free movie series benefitting local charities. Tonight’s movie is Spiderman, starting at 8:30 p.m., with donations going to First Helping, a D.C. Central Kitchen program that feeds the homeless. There will also be free popcorn and drinks, so bring a few dollars and help a good cause while watching Tobey Maguire swing from New York City landmarks. The series will be rounded out by Raiders of the Lost Ark on July 13th, Mr. Smith Goes to Washington on July 27, Life is Beautiful on August 10, and Back to the Future on August 24.