He's shooting a video game documentary. He wants to interview Billy Mitchell, who through both skill and self-promotion, is a celebrity in the arcade game world. "King of Kong" comes out, Mitchel sees it, sees he comes off look a douche supreme, and won't talk to this guy as a result.

Dude's thesis that you can't "pimp slap" the people you interview for a documentary is also somewhat bullshit. If you interview someone, and they act like an asshole, you have no obligation to make them NOT like an asshole in editing/post-production. Knife cuts both ways, bruh.