15 Movie Trailers You Won't Believe Were Allowed To Exist

5. Solyent Green Is People (Duh) - Soylent Green

The trailer for the 1973 Charlton Heston-starring classic sci-fi thriller memorably teased the audience by asking them to consider, "What is the secret of Soylent Green?"

However, if you kept even one eye open while watching this trailer, it gives you the answer, saving you the time and effort of actually having to watch it.

Late in the trailer, Heston's protagonist can be seen breaking into the Soylent Green factory, where a conveyor belt of corpses is running, and surely even the least observant of viewers could put two and two together here.

Considering the fame of the movie's big reveal, it's a damn shame that MGM felt, for some reason, that they had to essentially give it away for free.