Hi there. First time poster so hello to all out there. I'm interested in finding the name of a movie i have seen a couple of times. Here are some things that i remember about the movie. I think it had 4 (men) main characters called up by the government from universities over the counrty It s black and white and showed the development of radar (main theme). In one scene one of them goes on a commando raid in France to try to capture a radar site. Also they fly in a bomber and get radar returns off a town while flying. Also they did night fighters using the radar returns to find other planes They also stay a a seaside resort while working with their wives / partners with a housekeeper who's son is in the bomber that works with the sciencists but can't tell his mum. (More info just added) I beleive sone of the chararcters is based on one following people Mr. A.D.Blumlein, Civilian E.M.I. Mr. C.O.Browne, Civilian E.M.I. Mr. F.Blythen, Civilian E.M.I. Comes from this site http://www.doramusic.com/crashsite.htm as this site matches in what i remember about the film Hope this helps someone remember the name of the movie. Thanks for any help.