I don't trust this list. What's the plot twist in The Truman Show? That the main character is actually in a giant reality tv show? It's the premise, not a twist.

I can't think of a single plot twist that had a bigger influence on popular culture than Empire Strikes back. There were two twists in that movie - it was a total phenomenon. We were talking about that film for months. It isn't mind-bending today because everyone knows who Yoda is, and that Vader is Luke's father. But in 1980-1981 our brains all short-circuited.

The fact that the original Planet of the Apes is not listed, let alone missing from the top 10-20 is downright criminal.

I can only conclude that whoever made this list is some 30-year-old film fan who thinks they know about movies because they included a Hitchcock film. Frankly, I'd also include 39 Steps and put it higher than loads of these, but I haven't seen them all and can't say whether they all deserve to be included.