Idris Elba and 'Stranger Things' br Star Caleb McLaughlin to br Star in 'Concrete Cowboys' .br The film takes inspiration from the br Fletcher Street Stables, a 100-year-old black urban br horsemanship community in Philadelphia. .br McLaughlin will play 15-year-old Cole, br who goes to Philadelphia to live with br his estranged father (Elba), Harp. .br Throughout the course of the film, McLaughlin's br character is immersed in the city's surprisingly br prominent urban cowboy lifestyle.br Others to star in the film br include Jharrel Jerome.br Lorraine Toussaint and Byron Bowers.br Ricky Staub will make his br feature directing debut.br Production for br 'Concrete Cowboys' br has already begun. .