4. Planet of the Apes
Even people who haven’t seen Planet of the Apes will more than likely be able to describe the ending from memory, such is the way it’s become embedded in the very fabric of pop culture.
Up until the final scene, it’s a massively entertaining sci-fi romp that finds Charlton Heston doing his best to keep those damn dirty apes off his tail having escaped from captivity and gone on the run.
However, the conclusion is nothing short of legendary, revealing that he’d been trapped on a far-flung future version of Earth all along, with the lines elevated by Heston’s impeccable conviction and gravitas.