Park Chan-wook, director of the modern classic Oldboy, has partnered with Apple to post a 21-minute big-production-value video, albeit apparently shot using nothing more than several units of the iPhone 13 Pro. The project is ostensibly intended to showcase the 2021 flagship's upgraded cameras, previously touted as capable of shooting entire features as in this instance.
https://www.notebookcheck.net/Apple-and-the-director-of-Oldboy-present-a-short-movie-shot-entirely-on-the-iPhone-13-Pro.601721.0.html