24fps as authentic.

We're also stuck with blurry, juddery, slow-panning 24fps movies forever because (thanks to 60fps home video) people associate high framerates with camcorders and cheap sitcoms, and thus think good framerates look 'fake'.

xkcd: HDTV

Aha! I cannot recall which, but I've recently seen a film in 60fps which had that effect. Hehe. I will try to do better.