Think you have to work on a tight deadline? Imagine how some of the filmmakers having premieres in D.C. felt last month. Tonight, the Warehouse Theater is showing the D.C. area films from the National Film Challenge. The challenge (a sister project to the D.C. based 48 Hour Film Challenge) was to write and complete a short film over the course of one weekend. Participating teams were only allowed to organize their equipment, crew, locations,…