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From this I could tell that it is a film poster due to the actors starred being at the top of this poster.  The poster also has the release date that shows it is a film..

The bold letters on the film indicates to it being an action film and the cast wearing special ops like clothing while holding firearms.

Institution: Expendables was produced by Nu films, they are known to produce action and thriller movies like The Expendables series and London/Olympus has fallen. The budget for the movie was 80 million and the box office was 274.5 million USD.

Audience: Action/Thriller movies are usually around the 15+ age restriction this would usually appeal more to men than women. This influences people about courage and fighting for what is right.

Representation: This poster shows mostly men in special ops dressing laughing and having fun. This could show the consumer the bonds and brotherhoods that people at war have with each other.