The film's writer/producer, Leon Butler, single-handedly raised the entire £3 million budget from private equity.
The character name's 'Jules' and 'Vincent' are based on Tarantino's charismatic hit men in Pulp Fiction.
This is the second film that Idris Elba and Gemma Arterton both appeared in - the other being RocknRolla (2008)
Tom Cullen's character wanted to take his lover Gemma Arterton to Marrakech which she rejected. Tom Cullen also played a 'Marrakech Lover' on an episode of Black Mirror. In that episode Tom Cullen was the home wrecker where the wife admitted she met Tom in Marrakech.
This is not the first film that Ryan Gage and Ken Stott have appeared in together. They also appeared together in The Hobbit: The Desolation of Smaug and The Hobbit: The Battle of The Five Armies