There may be differences between the trailer and the full version of the movie "Late Mother 2012" due to the following reasons: The production company may have made some editing and cuts to suit the requirements and budget of the film production. 2. The difference in the release time of the movie resulted in a time difference between the full version and the trailer. 3. The movie may have undergone some technical adjustments such as color correction and sound restoration, which may cause differences between the trailer and the full version. The trailer and the full version of the movie may come from different sources and due to copyright and other factors, the production company may have made some adjustments and modifications, resulting in differences between the two. There may be some differences between the trailer and the full version of the movie, but that doesn't mean that there are any quality problems.