Most sets within the film were real and not designed. Often, shops and restaurants were open or preparing for business. This made rapid shooting and handheld techniques necessary.
In the film, Jake is seen to be viewing through an air vent above a door in Alice's apartment. In fact, the vent was fake - Jake's viewing area was constructed some miles away in a derelict building.
New York actor, Ed Bergtold (who plays 'Morten' in the film) appeared in 'Wall Street: Money Never Sleeps' as 'Rumor Trader at Urinal'.
The film was shot entirely in Leicestershire over a period of 19 days in November 2015.
The three-wheeled Reliant Robin used in the film was driven by a local resident accompanied by his dog, 'Scamp'. The car was stolen and wrecked by joy riders some weeks after the shoot.