Visible crew/equipment: Naomi Arai snuck back home from the window. When she walks down the stairs to go in the dining room, you can see on the upper floor wall to her left the shadow of the camera crew following her. (00:01:20)
Continuity mistake: After jumping off the pickup truck, the bikers come to a stop and lighting screens get reflected on the red biker's helmet. This happens throughout the movie in many of the scenes involving the red biker. (00:06:38)