Many identify-this-movie questions have awful titles like:
- can't remember the name of this movie
- a movie I only saw the trailer
- unknown movie from years ago
The on topic section of the help centre includes suggestions for identify-this questions but doesn't mention the title. I think explicit instructions to include key identifying details (description of a character, setting or plot) and exclude waffling about not knowing the name of the movie would make these questions better.
Alternatively, I can work my way up to 2000 rep editing the atrocious titles the tag currently attracts. :-)