In the fight with Russell, Cordelia is wearing high heels when Angel first picks her up, but she is wearing flats when Angel carries her over the railing.
When Russell and Cordelia are talking in his mansion a close up shot shows his hair at a shorter length, but when they go to a farther shot it's longer again.
At 38:41, when Doyle is pulling away from Russell's gate with Cordelia and Angel, you can clearly see equipment and a crew member in the upper right hand corner of the frame.