Doom is a movie based on a series of games (Doom 1, 2, 3) developed by id software
In the Doom universe, there is a genetic engineering lab (belonging to UAC corporation) on Mars accessible through a portal from earth. For some unknown reasons all hell breaks loose on the Mars facility and a team of soldiers from earth is called to investigate the situation on Mars. I will not spoil the rest of the story for you. For the gamers out there who havent already seen the movie --- Yeah there is a BOSS fight at the end :)
The sets bore a faithful resemblance to the maps on the Doom 3 game environments. Mainly dark corridors and futuristic research labs.
The standard weapons - pistol, shotgun and chaingun were all there. One major difference between the movie and the game was that in the movie characters had a flashlight embedded into their weapons. Now anyone who had played Doom 3 would raise an eyebrow here since a key element of gameplay in these dark environments was switching between your weapon and your flashlight (yea you were not allowed to hold both at the same time).
Monsters looked good. They did not throw out fireballs though and I have mixed feelings about that (in the game some monsters fling fireballs at you). Some fights were particularly good, especially the one in the containment cell and one with the first person view.
Special effects were routine and not very special. The game Doom 3 raised the bar higher in terms of dynamic lighting and graphics when it came out but the movie ended up just like any other sci-fi movie in terms of sfx. Sounds were good but not nearly so terrifying as the original game itself.
First Person View and other Game idioms:
What intrigued me about the movie before watching it was how game idioms would be translated into passive movie experiences. Now I could relate to different situations in the game as I was watching the movie. Here are the ones that I found in the movie:
1. Going around the labs to find access keys (or fingerprints) to gain access to protected labs/storage rooms for supplies.
2. Finding new (cooler) weapons as you progress through levels.
3. First person view - I really liked it on the big screen, non-gamers get an idea of what it is like to actually control a character against a huge monster :) What I feared was whether they had overdone it, but fortunately they didn't and the result was good.
4. BOSS fights. Every level usually contains a seemingly difficult boss fight after which you get refreshed for the next level.