Idris Elba has said it is important to showcase Britain in British films.
The London-born actor - who starred in hit US TV show The Wire and now in award winning BBC show Luther - was a producer for new British horror film Demons Never Die, and said it was important that London was a big part of the film.
Idris said: "It's important that we see where we're from in films.
"We've got such a charismatic city it's important that we see it in the backdrop.
"In Luther London is a big character and in Demons as well. I think it plays a big part."
The actor and DJ helped his director friend Arjun Rose get an all-star soundtrack for the film including Jessie J, Dionne Bromfield and Tinchy Stryder.
Idris has recently finished filming space thriller Pomretheus, co-starring Michael Fassbender, Guy Pearce, Charlize Theron and Noomi Rapace, and directed by Ridley Scott.
He said: "It was brilliant. I love Ridley Scott. He's my godfather now."