Telling me the whole plot of a movie robs me the experience of discovering it as it goes. I've always wondered about people who can sit through the same movie

Telling me the whole plot of a movie robs me the experience of discovering it as it goes. I've always wondered about people who can sit through the same movie several times. If you already know what's going to happen, how can you get any enjoyment out of it? I say this only half sarcastically. I get bored rewatching movies, except for only my very favorites. Those movies have been spoiled for me, and yet I enjoy them just as much as I did the first time I saw them (maybe a little more). Remember, the journey is half the fun, even if you know where you are going...