It's Castaway meets Signs.

Rating: 8/10 (15 December 2007)

Let me start off by saying that Will Smith is becoming one of the best actors of our generation. After starting his career doing some sub-par corny movies he has officially made his mark as a fantastic actor. It is a shame that he got jobbed out of an Oscar after a brilliant performance in The Pursuit of Happiness.
Robert Neville is seemingly the last man left on Earth. With the odds completely against him he is determined to find a cure to put the overly-aggressive infected victims at bay.
Robert Neville is in complete solitude; similar to that of Tom Hank's character in Castaway. Being completely alone makes the viewer feel much sympathy for Neville. More parallels could be made with Signs. Signs' aliens and the infected people in I Am Legend are similar in some physical aspects. Also, faith is tested in both movies as well with the main characters.
Spoiler: The acting for the most part was excellent. Will Smith does a great job, however, I wasn't too excited about Anna's character. She didn't have much charisma, especially for someone who has found life with not only Nevelle, but God as well. The boy didn't seem to have a part at all. Was he even necessary? I recommend this movie to just about anybody. It has a good plot with great graphics. It has a nice spiritual twist at the end. This movie provides hope to those who think mankind is finished even when on the brink of extinction.