Keep a reason beside each active title
A name alone can become mysterious six weeks later. “Short comedy for a work night; Bea suggested it” gives the chooser a usable occasion and a person to ask. “Save for the next rainy Sunday with both adults home” is enough detail without writing a review.
Distinguish a possible film from one you watched
Move a finished film to watch history with a date and an optional short note. A title someone suggested, disliked in a trailer, or could not find is still unwatched unless a person actually saw it. That distinction protects future recommendations from treating a plan as an event that occurred.
Review the shortlist when it stops helping
When a film disappears from a service you use, move it out of the next three rather than deleting the reason someone wanted it. If the person who suggested it has lost interest, remove it. A shorter active list is easier to choose from.
At the start of the next movie night, read the three titles aloud. If none fits tonight, identify why: running time, mood, access or cost. Replace the unsuitable slot rather than adding a fourth and a fifth active option. Keep a film that still matters in the longer list even if it does not fit this week.