If you already knew a movie, you wouldn’t watch it.

This example, and a few others in your post that follow the general pattern of "If you already knew X, then you would have no volition to go and learn X", don't apply to CEV as I understand it. The hypothetical extrapolated better-faster-smarter future yous are not being asked "What do you want now?", they're being asked "What should the past primitive-slow-dumb-you want?"

I might well advise someone to see a movie that I enjoyed, even if I have no particular desire to watch the movie again myself.