(Telecompaper) WarnerMedia has officially launched its new HBO Max subscription streaming service, after opening pre-orders on 5 May. The service will feature Max Originals, plus the company's existing catalogue of films and series. In total, it will have 10,000 hours of content, including the entire HBO service; films and TV series from Warner Bros' 100-year content collection; highlights from New Line; catalogue titles from DC, CNN, TNT, TBS, truTV, Cartoon Network, Adult Swim, Crunchyroll, Rooster Teeth and Looney Tunes Cartoons; and a selection of classic films curated in partnership with TCM.