Midway through the movie after the police man gets a tour of the "company" he is holding a bottle of water that is nearly full, but a few seconds later when he takes a drink, the bottle is nearly empty.
The young DJ takes the stage for the second time, but a shot from the dance floor shows a different DJ on stage spinning records.
At the climatic end of the party, while John Digweed is spinning, the record that is seen playing is "Virtua Trancer". This is not the actual producer/song. The track that is heard is "Bluebottle" by P.O.B. on the Platipus label.