Christopher Nolan has spoken about the “danger” of films only being available via streaming platforms, stressing that he believes in the ongoing importance of physical media.Speaking to The Washington Post, Nolan expanded on recent comments he made while introducing a screening of his film Oppenheimer, when he urged fans to buy the Blu-ray version, “so no evil streaming service can come steal it from you.”In the new interview, he clarified that he was joking in describing them as “evil”, but he did elaborate that the susceptibility of films disappearing from streaming platforms does concern him.“There is a danger these days that if things only exist in the streaming version, they do get taken down,” he said. “They come and go — as do broadcast versions of films, so my films will play on HBO or whatever, they’ll come and go.”“But the home video version is the thing that can always be there, so people can always access it.