Just watched a trailer/teaser of a film and want to add the film to your watchlist?
In your browser, just tap the share button and select the Shortcuts app and then this shortcut, or copy the URL (of the article or YouTube video) to your clipboard and run this Shortcut, to automatically search for it in the Letterboxd app and add it to your Watchlist.
Works in your browser on articles where the trailer was embedded (i.e. doesn’t have to be a direct YouTube link), or directly from the YouTube app.
Only works if the source is a YouTube trailer/teaser.