Visible crew/equipment: After McCoy examines Charlie and they talk about how Charlie learned to talk by just listening to the ship's tapes, when Charlie stands up the two actors' marks can be seen on the floor - the short one for Charlie and the longer one for McCoy, where they both will stand momentarily. (00:04:56)
Visible crew/equipment: When Alba says "He's in this room" books start flying off the shelves. You can see the device used to push the books off the shelves come forward then be retracted. (00:41:00)