The Screen Actors Guild-American Federation of Television and Radio Artists (SAG-AFTRA) officially announced a strike on Thursday following the expiration of their contracts with the Alliance of Motion Picture and Television Producers (AMPTP). Hours later, members of SAG-AFTRA, Hollywood’s largest union for performers and other media professionals, joined in striking with Writers Guild of America (WGA) workers in the two unions’ first joint walkout against the studios since 1960. “It came with great sadness that we came to this crossroads.