I have read many of the user comments and I think that the film is generally not getting credit for being a smart thriller. Why does the monster have to be on-screen to make it good? Hitchcock said that suspense plays better than action and although this film missed many opportunities to be more suspenseful, it's is at least not stupid.
In how many horror films today does the hero know the monster and its nature when he should? Steve knows what he's dealing with almost from the beginning and his frustration is not being able to convince the authorities.
Yet the authorities act in a totally credible way as well, even the annoying sergeant. Who would believe such a story from a bunch of "kids" (we know Steve wasn't a kid, but his character is).
One key example of the movie's intelligence: Steve is yelling to Dave to get CO2 fire extinguishers long after Dave has already gotten the message and dispatched people to get them. How many movies made in the 90s would be smart about this subtle detail?
I'm really tired of watching movies and having people behave in ways different than they really would in real life (the most irritating recent example is Tom Hanks falling asleep with the flashlight on in Cast Away). Horror films in particular do this in spades (which is why the Scream films have been so popular), but The Blob, to me, stayed pretty true to its characters, and in so doing made a smarter and better film.
Yes there are many flaws, perhaps biggest is Steve McQueen's very uneven performance, but I think they missed key opportunities for suspense that could have turned this above average, kinda scary, kinda funny movie that's a cult favourite into a true classic.
