Hope you haven't seen "Eight Below" if that's the case...
Aside from that, "I Am Legend" was a terrific film IMO...I never compare films to the book or to previous similar movies, simply because it's unfair to the hundreds of people who put in the time and effort in making a film...
First off, the detailed production just blew me away...the quietness of the scenes and the precise backgrounds/props made me feel as though I was right there in the picture...combine that with another admirable performance from Will Smith and a well-written script (despite the short length) that sucks a wide range of emotions out of you and you've got yourself one hell of a movie...
i thought it was great...not what i expected but it was good
this movie is good movie i don't love it but i don't hate it i just watch it to interested and make the time pass