Aubrey Plaza's Milk Campaign Backfires Amid Environmental and Moral Concerns - One Green Planet
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However, Plaza eventually reveals that Wood Milk is not real, and the ad is actually a "Got Milk?" campaign emphasizing the benefits of dairy milk.

The ad campaign, created by the agency Gale, aims to make a point about dairy in a somewhat entertaining manner. It was directed by Hannah Levy and co-written by Neil Casey, both of whom are alums of the popular comedy show Saturday Night Live.

That explains why the ad is smarmy and condescending rather than funny