I should take a photo of my DOOM collection some day, I got novels, minitures, posters, sealed games, giant books on editing, every commercial game based on the engine (which were mostly puzzle/rpg Franko), you name it, massive collection!
DOOM III? What's so Doom about it? Reminded me more of System Shock light. Not DOOM, horrid story (I like the one in the DOOM bible better), but not bad if you just get past the title, though not one of ID's usual works of art. DOOM 4 sounds promising though.
As for the movie... What movie?
Actually DOOM was inspired by Alien and Evil Dead.
My best experience was hooking my PSX up to the HiFi, putting on huge head phones that blocked out external sound, pulling my recliner up close to the screen, turning out the lights, and playing long hours into the night.
Scared the piss out of me!!!