if you went to see any of the other premieres could you help me???>.....

if so could you tell me about the deathly hallows premiere how to get into the crowd or do i need to pay for getting in plese tell me i really wanna go but i ma not sure how to get in could you help me please :)..........could you tell me where to be and when to get up at so i could be there aerly and were to be so i can get autographs????please i would greatly apritiate that