How is tension created?

Blitz

Blitz is a A1 Media project created by Sophie Greig, Charlie Manton, Catherine Ward-Thomas in 2011, The thriller opening sequence is sett in Britain during the second world war.
           

The sequence create tension by:

• Slow Camera movement
• dim lighting
• using radio sounds in the background, rather than music
• not having an establishing shot, to preserve mystery 
• providing background information in form of wall art, to get the audience pondering.