When Hawke and Sgt. Anne Brannen make there escape from the mob hitmen and Hawke is explaining how he figured out Brannen was leaking information, his sunglasses are on. The scene changes to Hawke saying, "I just didn't want to believe it," and his sunglasses are off. When the scene changes and then goes back to Hawke, his sunglasses are back on.
When String and Dom are filming with the Kowal Bell JetRanger the sound heard is that of an MD500.