When writing a SPM movie review, you should provide a brief summary of the plot, followed by a more detailed analysis of the film's strengths and weaknesses. In terms of the plot summary, you should try to keep it relatively brief - just a few sentences should suffice. When it comes to the analysis, you should focus on discussing the film's direction, acting, cinematography, and overall themes. Ultimately, you should aim to provide a well-rounded evaluation of the film that covers all of the key aspects.