Have you seen the movie?
I thought Paul was speaking primarily to the Gentiles (specifically a Gentile church) about hair length and head coverings for women during worship. Additionally, Romans tended to wear their hair even shorter than folks in Palestine(I am looking for the historical references for this in and aming my office), so I am not sure that the it can be stated that Jews in the Palestine area wore their hair in the style of a Roman haircut, if by style we mean hair as short as the Romans.
It seems reasonable from reading Scripture that the hair length of Jesus was probably longer than a short haircut and shorter than is often depicted.
Will do some more research in Scripture on this.