18 minutes into the film when Angel is walking down Hollywood Boulevard in front of extras some are looking at the screen and the three girls in the booth actually point and wave to the camera.
At about 10 minutes in when the hitters are shooting up the apartment, the squibs and protective padding under the dad's shirt are clearly visible.
Some of the early morning street scenes are recycled from the original Angel. For example, the same Chevy Chevette is seen parked in the same place with the same sign attached to it's roof.