To expand on what pkstar said, I'm almost positive that the film that resets is only Type-14. Because Type-14 is the only film that re spawns in its location every hour. But the higher quality films i believe are specific to each character so if Rei picks up Type-36 (or whatever number the green one is), she'll have it the next time you play as her, but Miku won't, if that makes any sense.
I think its the same with herbal medicine. Herbal medicine resets each hour to the default amount depending on your difficulty and re spawns at their same locations. But I think Sacred Water is specific to each character like the higher quality film, and does carry over.