During the attempted strangulation scene, there are two leis on the lamp. When the camera pans back after the chase, there's only one.
When the taxi blows up the back windshield is in it, but when the guys come, it is gone and there is no glass or bodies.
McGarrett returns from seeing the governor and goes into his office. Chin comes out of his own office and follows McGarrett, and there is a shadow of the camera behind Chin.
Danny hands a blowup of the suspect's picture to Steve and tells him that it is still wet. Steve briefly looks at it and immediately puts the wet picture in his suit jacket pocket.