50 Cent created quite a fracas at the "Scream 4" afterparty. He passed along the details to, well, millions of people. 50 Cent and the Weinstein Brothers were co-hosting the party at a restaurant in NYC - an event for 1,000 people.
But when 50 Cent posted the invitation on his Twitter page (dumb, dumb idea), security had to prepare in case his MILLIONS of Twitter fans just in case they crashed the party.
...good call, 50.