What looked to be three people were spotted flying around the skies of lower Manhattan last Friday, causing a lot of double-takes and dropped jaws from onlookers. But while it appeared to be a sight straight out of a comic book, it was actually a clever bit of viral marketing for this week's upcoming film "Chronicle." Those aren't people in the air, but some very intricately designed radio-controlled airplanes. Watch the video of their flight, and keep reading to learn how it was done.