Gary Oldman predicted that HBO's Harry Potter adaptation will satisfy fans more completely than the movies did. Television's episodic format can preserve the material cinema necessarily trimmed.
This logic sounds like it comes from understanding how adaptation works. It does not.
The BBC's 1995 Pride and Prejudice miniseries proved the calculation wrong. At six hours, it ran long enough to include every scene Austen wrote — balls, walks to Meryton. Endless tea — yet the format exposed something the novel had hidden. On the page, these scenes dissolved into prose and reading speed, while on screen they accumulated into duration you sit through rather than narrative that moves.
Fantasy creates a worse problem than drawing room comedy. Worldbuilding demands exposition that film absorbed by selecting ruthlessly and trusting viewers to intuit the world from fragments. Television assumes completeness serves the viewer. So HBO's Harry Potter will explain spells readers inferred from context and justify architectural details that mattered only to architecture. It will do what Rowling's text actually does. It will repeat, which worked when readers set their own pace over months, not in real time.
Fidelity to source material is not the same as satisfaction in a different medium.
Oldman's error comes from a category confusion. He spent filming watching his performance disappear into cuts and imagined longer footage as restoration. But when you adapt a novel, you are not recovering what the film lost. You are building something new that works under different rules. The work is deciding what the source material can teach you about its own structure. What was essential to the experience, not to the text. Missing that distinction explains why fans who claim to want everything often abandon series halfway through season two, realizing that completeness was not what they actually wanted. They wanted the thing they loved, compressed.