Not all Roman soldiers carried the square shield. Light-infantry units and auxiliaries carried the much lighter oval shield.

I've seen that piece of the commercial while channel surfing. It's at least 4 months old. Believe me, the people here could do 5 times better than that. It's just the P3 casual female with no texures. It looked like whoever did it put the animation together the same afternoon they installed Poser. Of course that IS possible...