With films like "Superbad" and "Pineapple Express" on his resume, Seth Rogen is easily one of the reigning kings of today's brand of stoner comedies, so it would be understandable if he found the current wave of marijuana legalization around the U.S. troubling from a creative perspective.

Since it first began publishing 111 years ago, the entertainment magazine Variety has never done an issue about cannabis. That just changed.