Factual error: In one scene, our heroes go down a water slide with their bikes. Landing in the pool at the end would have made their walkie talkies unusable. But later they still work normally.
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)