It's when people say Venom was screwed up in the movie based on his size that makes me question if they even know what they're talking about. Venom hasn't always been a hulk of muscle. Sometimes he was, other times he wasn't. It's artist interpretation. You may like the big Venom, but I think it'd look dumb to have a ******ed CGI hulking Venom in contrast with the characters of this film.
They did what suited the film best, and used the COMICS as inspiration. People deny that, but it's fact.
Boom. Right there. And that's before Spider-Man 3. He was pretty much that size in the film, if not bigger. The face was more based of Bagley's design I think though.
So you can say what you want about the character, but the size is a stupid argument.