if Hangover 2 director Todd Phillips is even 25% serious (which I doubt), the issue isn’t the film’s star monkey getting addicted to cigarettes during filming. It’s allowable, I feel, for an animal to develop a nicotine craving if it happens in the service of art. The issue is enablers (people on the crew of Cameron Crowe‘s We Bought A Zoo?) feeding the monkey’s habit by supplying him with smokes.