The Fallen Angels were often referred to as the "Watchers" who are also in the "Noah" (Russell Crowe) movie. They never helped Noah, but instead, often tried to taint Gods creation of Mankind and bloodline, to stop the birth of The Son of God on earth (Jesus Christ.). They never suspected Jesus would come from "The House Of David" even though to us Christians who have the greatest weapon of all time, The Bible, it was prophecies .