You're completely wrong. Almost every review I've read (and that's a lot, believe me) has said that this is very different from OoT, having new items, better puzzles, many more side quests, a much better storyline, and more in depth gameplay. I think that it'll blow OoT away, and I adore that game.
And yes, I would pay money to see the movie, even if I do know the ending. There's always something worthwhile inbetween. I write stories and stuff, and though I usually know my ending ahead of time, I still take the time to fill up the middle as effectively and as entertainingly as possible. And I enjoy doing it. Perhaps your problem is that since you've seen someone live, you figure you've lived. You're utterly wrong.