Mr Porter has introduced an exclusive British-style menswear label in collaboration with the English filmmaker Matthew Vaughn and the costume designer Arianne Phillips, correlating with their upcoming spy-themed action thriller Kingsman: The Secret Service (in theaters February 13). The custom collection—named Kingsman after Mark Millar and Dave Gibbons’s comic series turned feature film, starring Colin Firth and Samuel L. Jackson—comprises 60 original pieces that are featured throughout the motion picture, ra…