Ah here is one against the shadow theory.
Posted by: The_Wisest
Yes kids do film all the time, my nephew seems to think he'll be the next steven spielberg, as for it being a shadow, a shadow would run flat against a surface as it moved, stretching a skewing as it went, try it yourself.
Also one last thing, don't forget, when the sun upload it to view or even youtube, they convert to flash and inevitably lose a little quality making it blocky.
Not saying it is or isn't a ghost, but would like to see the original footage!/b]