wow, anymore news on the venom movie? this is the first time i heard of the possiblity that he's going to have one.
no way! carnage is not the son of venom, not really. eddie accidently got the symbiote on him after spidey got rid of it. then eddie became venom. than when he was in jail again and broke out, he left a blot of the symbiote behind on the broken wall. then it got on his inmate, Cassidy *whatever his first name is* and later he became Carnage. so, they aren't related the people, but their suits are in a way. but i don't think of them as father and son. i'm not sure how often they gang up to do crime together in the comics, but they do in spider-man unlimited. so they are more like friends then family.
i kind of agree with tedo. spidey isn't smart all the time. sometimes he acts before he thinks in a way. venom may not seem too bright because of the symbiote is messing with his mind. consuming his thoughts and actions, getting too attached. that's why peter got rid of the thing. but the comics with spidey wearing the suit are my faves!
if the movie decided to make more spider-man spin off for villans and such, it would get too crowded and overplayed. but the idea sounds cool all the same, go venom!