Deemed to be a summer blockbuster, Pacific Rim is a movie about big monsters fighting equally big robots. British actor Idris Elba is one of those robots, playing Stacker Pentecost. Elba, 40, attended the film premiere of action film on 4th of July at BFI IMAX, Southbank, London, alongside his co-stars, Rinko Kikuchi and Charlie Hunnam.