The document discusses casting choices for roles in a student thriller film. It describes casting their teacher, Mr. Wood, to play a controversial MP because of his good acting skills. It also describes casting the head of year, Mr. Rowlands, to play the headteacher because his daily role requires authority. Additionally, it discusses casting drama students to play the audience who witness an assassination for their acting experience and ability to react appropriately during filming. The document concludes they will not show the killer on screen to create more mystery and tension for the audience to imagine who the killer is.