The union's president, Gabrielle Carteris, said the agreement "represents a partial realization of our work toward industry culture change," implying that more work still lies ahead. The initial language proposed by SAG-AFTRA in Guideline No. 1 calls on "producers and other decision makers" to only conduct auditions in a professional setting. In the "unlikely event" of one not being available, according to the guideline, actors are encouraged to bring a "support peer," who should be in the room with them the whole time. (Weinstein's modus operandi, as alleged by dozens of women, was to have an assistant escort an actress to his hotel room and then immediately leave, so that actresses were trapped alone with the producer.)

The "casting couch" phenomenon goes beyond the stereotype of entertainment executives preying on newcomers. It's something that has happened to men and women at every level of the industry. Megan Fox said in a 2009 interview with British GQ that things actually got worse after she achieved fame. "It's really so heartbreaking," she recalled of some of the "Hollywood legends" who had harassed her. Making auditions a formal process, which are taped and have casting agents present, can help curtail harassment. But so often in the business, this process is bypassed or takes the form of casual meetings with producers, which is when inappropriate or dangerous encounters can more easily occur.

The SAG-AFTRA contract, at best, offers a solid baseline for conduct, even if it only currently applies to four TV networks. It recognizes, on some level, that there's an inherent power imbalance between a producer and aspiring actor at the start of a project. After all, when there are countless actors jockeying for a single part, that situation can be prone to exploitation. A natural next step for the union will be working this language into other agreements with TV networks and movie studios, once those contracts expire. A more ambitious move would be to come up with clear procedures for reporting and investigating abuse, to establish a mechanism for holding Hollywood's power brokers accountable, when necessary. This would be a more complicated goal to work toward than setting up rules around auditions, but it's one the union should explore in future negotiations.

Any serious efforts to combat the "casting couch" will require understanding that it can manifest in more shadowy ways. Weinstein's accusers have alleged that the producer also used his clout to spread rumors and to discredit serious stars like Ashley Judd and Mira Sorvino as retaliation for rejecting his advances. The widespread gossip that '90s ingenues like Gwyneth Paltrow and Gretchen Mol landed big roles after trading sexual favors persisted in the industry for decades. Last December, Paltrow charged that Weinstein had told other actresses that she had sex with him for a part, saying, "He used the lie as an assault weapon" (a claim Weinstein's spokesman rejected). A couple of months earlier, Mol wrote about the persistent rumor that she "had some kind of transactional relationship" with Weinstein, which she flatly denied.