By Peter Sblendorio From New York Daily News NEW YORK—The French filmmaker who shot the only clear video of the World Trade Center’s North Tower being struck by an airliner on Sept. 11, 2001, thought it was an accident, not realizing he was capturing a moment that would forever change history. Jules Naudet and his brother Gedeon were working on a small documentary about an FDNY rookie in 2001 when hijacked planes struck the twin towers in lower Manhattan on that tragic day. “I’m doing this kind of cliche shot of the World Trade Center, panning to the firefighters in the middle of the street,” Jules told the Daily News. “At 8:46, we hear this very loud roar. … I remember, as I’m filming the firefighters, I look up and I see, behind two buildings, an American Airlines flight, because I could read the logo on the tail. “I said, …