Before the scene where Cameron is officially introduced to Kim at the apartment where all the good Scanners meet up, there is a zoom in on Darryl (Ironside) who is waiting outside. You can see Michael Ironside is standing on what is the end of the dolly tracks which is used to smoothly truck the camera in for the zoom camera move on his face.
At the very beginning of the final fight between Revok and Cameron, Cameron hits Revok in the head with a statue. When the camera cuts to Revok's face before the statue makes contact, there is already blood on Revok's face where the statue is about to hit.
When Cameron "scans" the mainframe computer from the gas station telephone booth, the handset and its cord are clearly wrapped in layers of black plastic gaffer's tape. This is present throughout the entire scene and was likely done in an attempt to camouflage the special effects used in the violent destruction of the handset at the end of the sequence.