I only watched this once so far, but I do recall thinking 'aaah, I see what they did there ;)...it was fun to try catch where they swapped Charlie & the stuntman (spoiler: like when 'Matt' gets thrown behind the bed in that room...starts as stuntman, crawls from behind as Charlie. at least, thats what I remember thinking...I'll have to go back an rewatch again to confirm though...