Munich taught me that characters can change for the worse - but they still have to have a "before" snapshot in Act I.
It also reminded me that the touch of death does not come at the beginning of the third act, but rather, at the beginning of the Dark Night of the Soul, just before the third act begins. That's a very crucial difference, and one I had been missing.
It put me in that "movie trance" very, very effectively - I think the reason was the super-slick Spielberg cinematography. There was always something to look at and appreciate, in the moment - something that few enough directors take into consideration these days.