It's partially to do with the cost of reels, and the cost of marketing.
If they released a film EVERYWHERE, simultaneously, they'd have to pay for marketing and reels etc for every territory.
If that film flopped, they'd be VERY out of pocket.
So they dip a toe in the water, and released it in the US first. IF it does well there, it gets released in other territories (and reels get printed, or even just re-used) and it gets marketing money spent on it.
That, and the fact that hollywood, like nintendo, sega, etc, hate us brits.
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AMD Athlon 1700 (@2200mhz from 1466 sod the noise!) - 768mb pc3200 - 200GB Maxtor - Pioneer 106 - GF4 Ti4200 - twinhan/visionplus pci dvb-t - random pci analogue tv tuner - A7v600-x (to replace the a7n8x-d that died...) - random 17\" CRT
Sony STR-DE425 & Eltax c205s;
xBox w/20GB HDD- executer 2.3b;
xBox - standard;
Konica/Minolta dimage z10 w/2x512mb SD;
iRiver h340;
A silly amount of Cat-5 and usb cables | 
SIN CITY! 
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