Hehe, I can see the plot for that now!
"The blocks are still coming, and they're destroying the cities. Nukes won't help. But what we have noticed is a rare phenomena. If they are placed in line, the flash and vanish. What I propose we do is gather the best bricklayers in the country!" A scientist said amongst a secret NASA and jointchiefs meeting.
"I know just the one." A thin man with glasses raised his hand and said.
CUT TO:
L.A Central building complex
COLIN FARELL, sweatly swabs some cement on some bricks and placing another one on. We zoom out to see that he's high up on a building, and a nice pan reveals the rest of the city.
"Hey Buck, don't you worry that your line of work is a dying breed?" A huge overwheighted man (John Goodman) said walking by him. He sat down and started to eat his lunch.
"Maybe so, Mack, but someones gotta do it." COLIN smiles and wipes some more sweat off.
We see a glint in the sky and a army helecopter flies towards the camera.

of stuff happens.... Blah blah.
CUT TO:
NASA OFFICE
"More bricks are falling every day. And they're building up. No one seems to be able to get rid of them fast enough. We need you with a special unit of mathematicians to figre out their postions and get rid of them before the world gets covered..." The Nasa official said grimly. A small simulation of different shaped bricks falling ontop of the city is seen behind him on a tv screen. COLIN shakes his head.
"Man. Those mathematicians might know the answer to the a square root of negative one, but they know **** of brick laying. Its an art. You can't just ask anyone to do it..."
"What do you suggest?"
COLIN looks up the official with a bit of reluctance.
"All they gotta do is lay the bricks?"
"Thats all."
"Then I'll need my team."
"You got it."
More **** happens. We see the whole training of the brick laying, and then finally them attacking the next onslaught of falling bricks. Then in a fit of no luck, none of the bricks seem to line up and there is one final brick to lay which could connect all the bricks. But someone has to stay behind and under the brick in order to make sure its in place. COLIN decides to do it and saves the world.
uuuhm... Yeah... I got a bit carried away...
