movies during their exclusive contractual window with the network; the Netflix deal was not subject to any distribution restrictions, allowing DreamWorks Animation to continue the re-sale of its films through digital download via third-party providers.) The first-run output deal with Summit Entertainment—which initially ran through December 2017, and replaced Showtime (which had exclusive rights to its films from January 2008 until December 2012) as the studio's pay-cable output partner when it initially went into effect in 2013—was renewed by HBO for an additional four years on March 1, 2016. (Summit is currently the only "mini-major" movie studio and the only studio not among the five core majors that maintains an exclusive output deal with HBO.) On March 2, 2021, it was announced that the deal with HBO through to the end of 2022 expires. Other film studios which formerly maintained first-run pay-cable contracts with HBO have included American Film Theatre (non-exclusive, 1975–1977), Walt Disney Productions (non-exclusive, 1978–1982), The Samuel Goldwyn Company (non-exclusive, 1979–1986), ITC Entertainment (non-exclusive, 1982–1990), New World Pictures (non-exclusive, 1982–1986), PolyGram Filmed Entertainment (non-exclusive, 1984–1989), Hemdale Film Corporation (non-exclusive, 1982–1986; exclusive, 1987–1991) De Laurentiis Entertainment Group (non-exclusive, 1988–1991) Lorimar Film Entertainment (non-exclusive, 1987–1990), Hemdale Film Corporation (non-exclusive, 1982–1986) and Savoy Pictures (exclusive, 1992–1997). Documentaries HBO maintains an in-house documentary production and distribution unit, HBO Documentary Films, which releases between 10 and 15 documentaries per year (averaging about two premieres per month) for the network and provides limited theatrical distribution of certain films prior to their initial broadcast on HBO's linear television and streaming services. The unit's longtime chief was Sheila Nevins, who initially served as Director of Documentary Programming from 1979 to 1982; upon returning in 1986, she headed HBO's documentary unit under various executive capacities (as Vice President of Documentary Programming, as Senior [later, Executive] Vice President of Original Programming and, beginning in 2004, as President of HBO Documentary Films) and served as executive producer of most of its documentary productions until she left the network in March 2018. Under Nevins, HBO's documentaries have won 35 News and Documentary Emmy Awards, 42 Peabody Awards, and 26 Academy Awards as well as 31 individual Primetime Emmy Awards honored to Nevins. The network's first successful documentary was the six-part 1979 miniseries Time Was, a Dick Cavett-hosted retrospective that took a historical look at an individual decade in the 20th century—from the 1920s up to the 1970s—over the course of