This paper presents the development of the main modules of a highly interactive system for security training, The system allows the security professionals to feel as if they were in a real danger situation, very close to the one they may find in their work activities. Such situations create conditions for a better training and skills achievement. In order to produce the interactivity, the system exhibits a 2D movie, in real size (1:1), showing scenes and scenarios close to the reality of the professional under training. During the movie an unexpected situation of danger emerges and the user has to make quick decisions to circumvent the problem. Depending on the reactions of the user, the automated system chooses the best sequence for the movie. Afterwards, the reactions and decision taken by the users will be evaluated by computer software to determine his/her performance.