Dave Knott writes "The notable science fiction screenwriter and director Dan O'Bannon has died at the age of 63. O'Bannon's career began with a writing credit for John Carpenter's Dark Star and he went on the write many enduring science fiction and horror films such as Blue Thunder, Lifeforce, Screamers and Total Recall. He was also an occasional director, whose credits include The Return Of The Living Dead, the campy horror film that made popular the zombie chant of 'braaiiiinnnsss.' However, he will be best remembered as the writer of Alien, one of the all-time classics of both the science fiction and horror genres. O'Bannon died after a 30 year battle with Crohn's disease and is survived by his wife, Diane, and son, Adam."