You can be a nerd and promote a movie. Vin Diesel is a big ol' DND nerd. Rosario Dawson is some sort of Star Trek superfan. Henry Cavill is way too into fantasy, and Warhammer in particular. Rashida Jones is a gamer. Colbert is a Tolkien nerd.

And you're still here. Aren't you a big ol' Potterhead?

Disclaimer since text doesn't always come across the way you mean it: None of that is meant to be offensive. I'm a computer nerd for a living and a fantasy nerd. I love nerds. They're my people.