Unstoppable movie trailer from 0:50-1:50

This part of the trailer starts off with a sound bridge, where we hear the woman's voice over the footage of the film and then we see the woman whom is speaking.There are many sound bridges used with the same woman; and it always jumps from the action-filled scenes back to her.
 It contains the most action scenes, with very quick editing to increase the dramatic impact and to engage the attention of the viewer. The transition from each clip is a blackout which then leads on to the next scene. There are many long shots to show us the extent of threat that people are under due to the huge train, and to show the location. This is mixed in with close up shots of the main characters faces to show their emotions and gestures, and the fact that they're shouting and screaming; and also close up shots of the train tracks and of the train speeding along them, to make the suspense build in the audience.
There is diegetic and non-diegetic sounds of sirens to give out a sense of emergency.
It also uses the most important lines to engage the audience, such as "this train is filled with hazardous chemicals. It's not a train, it's a missile." and "a train going that fast will vaporize anything in front of it." This provides the audience with a better understanding of the plot.
Little scenes such as when the horse is seen on the track adds depth to the plot; as it tells the audience that there are more problems to be solved.
According to Todorov, the equilibrium of the trailer would be when there is non-diegetic sound over the video of school children who are heading for the train that is 'out of control'. Along with the problem that they already have of a chemical-filled train that won't stop, they now add to that equilibrium by having a hundred and fifty school children's lives at risk.