That Is The Question

I recently saw Before The Devil Knows You're Dead. I assume the erudite readers of Pajama Guy know the title is the second part of a famous Irish toast.

Many film titles come from famous quotations (feel free to list any in the comments) but there's usually no reason to explain the origin unless it comes naturally in the plot. Unfortunately, this film demonstrates little faith in its audience and directly shows where the title comes from right at the start.

They must have had a conference at some point. "Should we tell them? They may be confused, otherwise?" Here's my advice. Even if you pick a quote that no one knows, leave it alone. The few who get it can pat themselves on the back, and the rest will either let it pass, or perhaps be piqued, which can only make your movie seem that much more interesting.