The Month of July

It's almost here.  The big month of action.

Just one week from now, the peaceful slide into summer will be abruptly filled with wailing, explosions, firefights and a great gnashing of teeth.  Most of those sounds will come from the movie screen, but a few of them may be from me.
In order to add another layer on to this project, I have decided to watch one July release twice.  That's right!  At one point next month, I will walk into a theater and purchase back-to-back showings for the same film.  This way I can really GET what the director is trying to say to me, y'know?  The first sit-through will be used to get all the fear, loathing and disgust out of my system.  That way I can really feel the nuance of the explosions or fart jokes during my second screening.
But it's not enough for me to make this decision!  I want YOUR vote!
Which movie should I watch twice?

Transformers 3
Horrible Bosses
Harry Potter (Book 7 Part II)
Captain America
Attack The Block
Zookeeper  (This comes out the same week as Horrible Bosses, a film I actually want to see.  I thought it was grossly unfair that Horrible Bosses won the 'Google test,' so I will see both, just to keep punishing myself.)

Vote in the comments section, and whichever movie that has the most votes by Thursday, June 30 wins!  No matter what, I probably lose!