I know it's been out a long time ago but I managed to watch it in cinemas (you know, before they take it down) and it's freaking cray!
I've read the book before and even though I know what's gonna happen next, it still excites and surprises me everytime.
You know what a good movie is?
It's when everyone walks out of the cinema hall, eyes red, some still with tears, and you can clearly see that they're satisfied.
That is a good movie. I cried like hell in there. TFIOS is just amazing. It's one of those rare films that makes you breathless. It's awe-inspiring.
No I don't wanna go through the whole plot and story line. Read it yourself. Read it first then watch it.
Trust me, you'll love it.