I have watched the first two live action Resident Evil movie and didn't get a chance to watch the 3rd one and yet to watch the 3D one. To be honest, the first one I didn't like because it was pretty badly done. However, the second one was actually better and was filmed in Toronto! Although the 3rd and 4th one, I heard it was good but it's just not the same to me. I've played bit and pieces of all the games just never have the motivation to finish them minus chronicles with Bro which you don't need to conserve ammo or solve puzzles.
Over and over again; time after time, "Umbralla" is supposely to be gone and some company comes in and takes over stuff and spawn more virus and you continuously get new monsters and new plots. So this is like a never-ending franchise... Aside from that, this movie pretty much unfolds its story in a similarmanner as the games. So you encounter new characters and zombies along the way.
What I like about this is that it aligns with the game. For the most part, the plot works and seems logical unlike the live action movie. The studio really tries to make the movie as realistic as possible and at one point of the film, I almost forgot the entire thing is actually animated.