BOSTON — The leaves may be getting ready to fall, but the Boston area is blossoming with several film festivals in the coming weeks.The 3rd annual Newburyport Documentary Film Festival unspools September 29 to October 1. Entries range from the issue-oriented (Danny Schechter’s “In Debt We Trust”) to the biographical (“Jack Mitchell: My Life in Black and White”). Features, documentaries and shorts mix it up at the 31st New England Film and Video Festival, Oct. 5-9. Docus include a look at a local TV legend with “Rex Trailer’s Boomtown” as well turning the cameras on another filmmaker with “Shooting Michael Moore.” Features include the world premiere of “Caffeine” with Mena Suvari, Katherine Heigl, and Breckin Meyer. The 18th annual Boston Jewish Film Festival returns Nov. 1-12 with 57 films from 16 countries. Ambition schedule includes satellite mini-fests in the suburbs, as well as the world preem of “Lonely Man of Faith,” docu on major figure in modern Orthodoxy, Rabbi Joseph Soloveitchik.