This seems like overkill to me, but Lamont is speaking very highly of this method. I personally rewatch movies extremely rarely, and the number of movies that I have seen more than once is very small, so the idea of watching one movie 50 times is rather nauseating.
I do, however, concur that re-consuming A/V media in an L2 is beneficial to me, as I noticed that I tend to struggle with correctly interpreting grammar the first time around.
Hunh, this seems like an adaptation of the L-R technique listed here https://sopuli.xyz/post/659485, but for a single film. Pretty interesting.
Refold (who Lamont is a partner of) focuses quite heavily on L-R for the beginning stages. I agree it’s quite interesting to see!