It's pretty common to notice new details when reviewing things, where you don't need to focus on the same details you did last time.

Foreshadowing is all over in movies, as well as artifacts of cut subplots/scenes. Re: /r/moviedetails

I'm not a big movie watcher but I definitely repeatedly consume other media. Music in particular, tv and print as well. If an album comes out that I like a lot, I'll often play it front to back a dozen of times in a week.

Some people enjoy reveling in the details they missed the first time around. Different strokes for different folks.

Great, that's your preference. Other people do enjoy it. People have different preferences.

Sometimes I fall asleep and have to go see the movie again.

Not my usual reaction to films that put me to sleep.

because it was awesome?

The world is full of awesome movies. Cinema has existed for more than a century.

What you will understand someday in life is that as we grow older, we have less desire to explore new things, and prefer to revisit familiar things while we still can.

Watching the same movie three times in a week (which has just come out and so can hardly be a nostalgic favorite) is taking that to a bit of an extreme, more reminiscent of the viewing habits of a child.

lol