Take 1 first, sometime before the show, see how it is. Don't take them all at once. Don't go off someone else's experience unless you know and trust them as a tripper.
So, if you take 1 one night a week before you see the movie, if you feel like you can handle 4 for the movie, then do it. But only do it after you've tried the batch.
FYI 4 hits of acid will leave you going strong for 12h AT LEAST, "sreading out" acid generally lasts in a longer trip, significantly longer usually, so i don't recommend doing that unless you have recovery days set aside.
Think about the situation before you take a high dose of acid: what are you gonna do after the movie's over? How will you get home? Will you be capable of sitting still in the movie theater while tripping your balls off?
High doses are best done not in public

. If you've only taken 2 before, 4 or 5 is going to be pretty damn strong, especially if the batch is strong.
Oh, one other thing, would you be by yourself, or with a trip-buddy/sitter? I recommend having more sober people with you who can get you out/home!