Only one person allowed in bathroom, but twice there are two and the "voice" made no advice.
At 21:15 in the movie, the room clock shows 23 days, 11 hours, 51 minutes, and 45 seconds remaining in Michael and Kate's time in the room. Then, at 26:02 in the movie, the room clock shows 31 days, 7 hours, 18 minutes, and 40 seconds remaining in their time in the room.
Kate Bosworth's and Ashley Greene's nipple patches are visible at times.
When Kate touches the screen to dispense her treat, the screen reads 'Your food is being dispensed'. When the shot cuts away and then back again after Kate picks up her treat, the screen then reads 'Your treat is being dispensed'.