I find your point 2 very odd on both counts. First, I would find it pretty surreal to walk out of a movie theater because of 1-2 minutes of exposition. You literally spend more time walking from the booth to your seat or watch advertisements before the movie starts then the few noments of on boarding for those that don't know the universe.

Second, there are literally millions of books published each year. Yes many are bad fiction or bad nonfiction but there is an incredible wealth of books that use each page well. E.g. I read 'Sex, Power, Suicide' by Nick Lane a few weeks ago and there was not a single page that felt wasted - every page i learned something new. Similar with e.g. Hans Rosling's book. And there is much fiction where each page matters in driving the plot.

Tl;dr: choose good books.