Thriller research - Inception (Nolan, 2010)

The following clip is from the film Inception (2010) , and

is taken from the opening scene in the film. The scene begins with a clip from the present , however then flicks to the past without telling the audience

it does so. This means that the first scene remains untouched and the producer may come back to it , to help produce a more flowing plot line. In this case , the film tells the story of how he is in this situation from reverse.