Restored prints
Many classics have been restored from their original negatives and stream in HD or 4K: 2001: A Space Odyssey and The Godfather are famous examples.
Silent films
Metropolis, Nosferatu and The Cabinet of Dr. Caligari survive in restored versions with new scores.
Aspect ratios
Classic films may show black bars; that is the original shape of the image, as the director framed it.
Where to look
Services that specialise in classics often carry the best restorations; Watch now lists them.
