Dialouge in the Opening

We decided to keep dialogue to a minimum throughout the opening, we chose to do this as we thought that dialogue would disrupt the tension that is being built and could interfere with the music that lends so well to the tension. The dialogue throughout the opening is in the classroom between the teacher and the students this is only because it helped to set the mood and give slightly more understanding of the situation to the audience, however the opening doesn't need to give too much information, as a information heavy opening would spoil the plot of the rest of the film