Research and Planning: 'Wall' scene

We have started to think of ideas for our zombie film trailer. I have watched Derren Brown's TV special called 'Apocalypse', there was a part of the show where it shows you a wall of pictures and letters to peoples loved ones who are missing. I thought this would be a good idea for our film trailer, even though the convention was not taken from a film, it still would be suitable for the genre and narrative.