It was said several times in the movie that the characters have been stuck in Alessa’s Silent Hill for 30 years. However, the flashback clearly shows the Police Officer who helped Christopher, Officer Thomas Gucci, being the one who rescued Alessa from the fire. That would make him at least 50 years old. He doesn’t seemed to have aged 30 years. He is in the real world, what would prevent him from aging? That is odd, especially since many characters, such as Dahlia, have been aging in supernatural Silent Hill. It cannot be argued that is his father because he has the burn scars still on his hands.