I agree with some of you here. On the one hand, you want a movie based on a book or comic to be as faithful to its source. On the other hand, anyone who is familiar with the process will know that sometimes the source doesn't translate well into another medium.
In this case, the changes seem justified. It felt weird and out of place having that monstrous squid thing in the comic. It would feel even more out of place to have it in a movie. Im sure all us hardcore fans would love for it to be the same but as long as the movie lives up to the spirit and message of the comic, hey, its cool. Personally, from what I've seen it looks like its on the right track. I'm crossing my fingers.