Most film diaries die the same way: they become a list of titles. Titles are useless. In five years "watched The Silent Monsoon, ★★★★" tells you nothing about the Tuesday you watched it, who you were, or why it landed. A diary you'll actually want to reread is made of small, specific, slightly embarrassing details. Here's how to keep one.
1. Date everything
The date is the whole point. A rating without a date is trivia; a rating with a date is a memory with a hook. When you look back, you won't remember the film — you'll remember that you saw it the week everything was falling apart, or the night you couldn't sleep. The diary groups by month for exactly this reason: it should read like a calendar of your attention.
2. Write one line, always
Not a review. One line. "Cried on the train home." "Watched this to avoid a phone call." "My dad would have loved the boat." One honest line beats five paragraphs of criticism you copied from your own good taste. The composer has no toolbar for a reason — we don't want you writing an essay, we want you writing the truth.
The best diary entries are the ones you'd be slightly mortified to read aloud. Write those.
3. Use the rewatch flag honestly
The little rewatch mark is the most underrated thing in the product. A film you've seen four times is telling you something a film you rated five stars once is not. Track your rewatches and, at the end of the year, look at what you actually returned to. That list is your real taste. The five-star list is your aspirational one.
4. Rate for you, not for the average
Half-stars exist so you can be precise, not so you can be correct. Your ★★★½ is a private instrument. If a film everyone hates is a four for you because of one scene, log the four. The community average will survive one honest rating, and your diary will be truer for it.
5. Tag your own vocabulary
Tags are personal, not a global taxonomy. Make up your own: comfort, watched-with-mum, should-not-have-worked. In three years you'll be able to pull up every film that made you feel a specific way, which is a thing no rating system can do. The tag field autocompletes from your own history — it's building a language just for you.
6. Log the ones you didn't finish
Controversial, but: an undated, unrated entry that just says "bailed at 40 minutes, life is short" is still worth keeping. The films you couldn't finish are part of the record too. Leave the date blank and log it anyway.
Do these six things and in ten years your diary won't be a list. It'll be the closest thing you have to a photo album of your attention. Start one tonight.