In Blade II, Scud is ordered by the bloodpack to hold open a reaper's mandibles while they're dissecting it. Scud is reluctant, but Blade calls him a "sissy" so he goes ahead with it. It seems out of character for Blade to back a bit of vampire bullying in favor of his human companion, but the end reveals that Blade knows that Scud is a double agent, so he doesn't really gives a damn about Scud.
In Blade: Trinity Dracula/Drake has a One-Winged Angel form, One of the more noticable features of said form? His jaw splits open, it seems Damiskinos was closer than he thought to making a "perfect vampire".
Deacon Frost's plan is to summon the Blood God, which will turn all humans into vampires. Why would a vampire want to do that? It would be like a lion turning all its prey into lions. If everyone in the world is a vampire, who will the vampires feed on?
It was originally explained that he keeps refrigerated humans to feed on, but this was dropped for being too expensive. It was realised in Blade: Trinity.