In the credits you can see that the movie is shot entirely at "Bentwaters Park" in Suffolk (UK). Royal Air Force Bentwaters or more simply RAF Bentwaters, now known as "Bentwaters Parks", is a former Royal Air Force station about 80 miles (130 km) northeast of London.
One Shot can also refer to the movie being a single continuous scene.
Ashley Greene is credited as Ashley Green Khoury.