Haven't seen Surveillance dude so I dont know how i compares but Watchmen really is worth checking out. It's long but it really dosen't affect it, I wasnt bored once throughout, it really is a superb film. Like I said i havent read the book so it really caught me off guard as to how violent it actually is, some parts are seriously brutal which was a pleasant surprise

and Rorscharch is perhaps one of the greatest characters ever conceived