I recently watched After The Dark, which has a very neat storytelling premise, but isn't actually that good.

It features a philosophy teacher running a thought experiment with his class of 18-year-olds on the last day of term, in which they're all given an identity and have to argue for their inclusion in a bunker to survive a nuclear holocaust and repopulate the human race. We cut between their classroom discussions and cinematic depictions of the scenarios they're role-playing.

It's not brilliantly done, and the sentiment it ends up pushing would give most LW readers an apoplexy, but it's an example of a film which I'd like to see done well.