Hi! Performance is pretty good in both conditions (particularly in the clear condition). What happens if you grab some attention elsewhere at relevant moments. For example, have a mudsplash or flashing light behind the magician.... flashing/appearing "randomly", but actually have it coincidentally happen near critical moments. (perhaps ask people to also count the flashes?). Anyway, IF you can pull some attention away, are there any interesting changes?
Two other quick questions: (1) any interesting individual differences? (2) What if people watch the video upside down (well, make the movie upside down, not the people...). :)