Jhannet Sejas and her boyfriend were celebrating her 19th birthday by taking in a matinee showing of the hit movie "Transformers" at the theater at Ballston Common mall. Sejas was enjoying the movie so much that she decided to film a short clip of the sci-fi adventure's climax to get her little brother hyped to go see it. Minutes later, two Arlington County police officers were pointing their flashlights at the young couple in the darkened theater and ordering them out. They confiscated the digital camera as evidence and charged Sejas, a Marymount University sophomore and Annandale resident, with a...