Antiquity coin dealer here.
The opening first appearance of the coin you see it is silver I was thrown off a little because it looked like a Judean shekel year one after the Jewish War began May of 66 CE but it shouldn't have a cross image on the other side.
The scene in bowling alley you can see the reverse image of a Byzantine follis, Large M , ANNO to one side / X on the other ( anno and X mean year of reign =10. Going back to the first appearance I see the Cross was the X and the Line of the M is barely visible.
Each side of this coin doesn't exist for the other. It should be a bust of a byzantine emperor and the Large M.
For the final but ..... The large M is 100% byzantine image not seen in other coins but it was made in bronze not silver.
It could have been a large fake silver coin you can buy in most of these port cities, or the prop guys decided to make a fun looking coin.
My two shekels
