In the Iraq War-set The Wall, based on an original screenplay by Dwain Worrell, Aaron Taylor-Johnson plays a sniper named Isaac who, along with his partner Matthews (John Cena) is sent out to investigate a number of deaths at construction site.
After hours of waiting in still silence watching the area, they are convinced that the coast is clear, but this judgement is made too soon.
Before long, Isaac finds himself injured, alone and trapped behind a wall with an expert sniper aiming to kill him, and must find some way to escape or kill his enemy before he bleeds to death.
The bulk of the movie is Aaron Taylor-Johnson talking with the sniper over the radio while moving slowly around a 20 foot area, and the performance is just that much more incredible when you consider the fact that the actor really had nothing to work with to get him into the moment.