Hollywood sex symbol Jessica Alba will "never" go nude for a film - because her Catholic roots prevent her. Alba believes it is important to abide by her strict religious beliefs - even if it means losing out on blockbuster film roles. The 26-year-old says, "I will never do a nude scene in a movie - not ever. I can act sexy and I can wear sexy clothes but I can't go naked. I think I was always very uncomfortable about the way my body developed. "I come from a Catholic family and it wasn't seen as good to flaunt yourself. I can handle being sexy with clothes on but not with them off."