the motion picture association (mpa), originally called the motion picture association of america, is a non-profit group based in the united states. its members are the "big six" major hollywood studios: walt disney studios motion pictures (the walt disney company), sony pictures (sony), paramount pictures (viacom -- which bought dreamworks in february 2006), universal studios (comcast), and warner bros. (warnermedia). it also represents netflix streaming platform movies. the organization produces the well-known voluntary film rating system. on january 22, 2019, netflix became the first streaming service to become a member of the mpa.