When a Stranger Calls (15) <!-- none onestar twostar threestar fourstar fivestar -->

Baby-sitter alone in a big house, mysterious phone calls - am I ringing any bells here? It can't have been easy to try to make something fresh out of a plotline that most of your audience will have heard as an urban myth when they were six, and which has already been spoofed to death in the Scream and Scary Movie franchises. All the same, I can't help feeling that this updating could have been a little more imaginative - the only wrinkle on the basic plot is that it uses mobile phones.