King Arthur Stick Effect

[immort4l]

if you go here kingarthur.movies.go.com and then click on gallery after the preloader theres a guy with a stick and it looks like he slices the screen. i was just wondering if that effect was made with after effects or something else

[Dr Warm]

To me that just looks like a simple mask, but i didn't get to see it really well, it was pretty fast