Why do film makers not do any homework on practical makeup or social structure

[MG]

Laurel K. Hamilton writes a series of books that eventually turns pretty kinky and features the pack dynamic of werewolves in major plot points. Vampires play major parts as well.
Lots of sex and action. Very good read and those of you with heavy werewolf interests might find it appealing. Although there is very little were-porn, so to speak.