I think I understand why some people think this movie will be crap.
The fact is that there can't be no Venom without Spider- Man. Yes, a lot of writters can think of another way Brock got the costume but sincerly, it won't be as good.
The second fact may be also that suck-balls Sony and Paramount Pictures may give us a childish, low buget spin-off just to please us with a movie titled "Venom".
I'am going to give a shot to this movie, but if they failed I may not see the continuation of Spider-Man films and will consider Paramount as Fox2.