My son saw "300: Rise of an Empire". The original 300 is one of his favorite movies. He said the sequel was weak both in plot and special effects, like it was rushed together just to take advantage of the the original's popularity.
If I'm the ref and they don't drop charges, I'd try to get the player charged with assault with a deadly weapon. A puck to the head can give you a concussion if not worse, even with a helmet on.