But try to make it look like he is holding the spear or something. You see a hand then he suddenly has a spear and throws it with immense force. That's unrealistic.
i was trying to find out wat was goin on too at the start but after loooking at it a few times i just gave up.. anyway it was pretty cool =) it didnt look like a spear
more like a long bullet kind of thing... but then when its flying thorugh the air a bit it looked like a spear =)