To film geeks of a certain age (and I include myself in this) the name Dan O'Bannon has special resonance. He co-wrote (with John Carpenter) and starred in Dark Star. His character's name was Pinback which led to Alex Garland naming Pinbacker in Sunshine after him. He co-wrote a script called Star Beast that became Alien, as well as the screenplays for Blue Thunder, Lifeforce and Total Recall.
He worked with Alejandro Jodorowsky on his aborted adaptation of Dune, and wrote and directed the trippy Return Of The Living Dead which is one of my all-time favourite zombie films and was, I believe, the first to identify brains as being zombie food stuff rather than simply human flesh.
Growing up, reading about him the pages of Starburst and Starlog and Fangoria, Dan O'Bannon was something of a legend. He will, as they say, be missed. RIP.