(L-R) Jon Barinholtz and Rob Belushi Studio Lambert EXCLUSIVE: Studio Lambert, the production company behind The Traitors and Squid Game: The Challenge, is expanding its U.S. operation. The All3Media-owned company is launching a new label with Jon Barinholtz and Rob Belushi. The pair are actors-turned-game show creators, having recently developed and produced The Perfect Line for the Game Show Network and CBS Media Ventures. Barinholtz and Belushi have created Inner Drive Entertainment, which will be housed under Studio Lambert.