Think I've found someone using #OpenAI to post answers to a StackExchange site.
https://scifi.stackexchange.com/questions/269998/what-is-the-first-sci-fi-time-travel-movie-where-a-person-can-travel-back-in-tim/270024#270024
https://scifi.stackexchange.com/questions/269998/what-is-the-first-sci-fi-time-travel-movie-where-a-person-can-travel-back-in-tim/270024#270024
What is the first sci-fi time travel movie where a person can travel back in time, not instantaneously, but at the rate of 1s per second?
In most movies that feature time travel, traveling back in time is instantaneous or takes just a few seconds, regardless of how long ago a person travels back. The exceptions I know of are two of myScience Fiction & Fantasy Stack Exchange