Evaluate how successfully your film develops one of the key narrative listed? mention: mise en scene music sound characterisation editing plot effect on audience The film Portals creates a twist in the narrative at the end by using a reversal of fortune, making the character think they have escaped but then revealing that she has not actually escaped and it was a simulation. Through the film we get hints that the woman could be in a simulation, the way the gun randomly appears from the wall is like something that would happen in a video game. The barcode on her neck also indicates that she is part of a simulation. The footage on the cctv also suggests that the woman is trapped in a simulation. Near the end when it is revealed she didn't actually escape we hear doom laden music to emphasise the fact she is trapped.