A comedy double act drive to Edinburgh to perform one final show, blissfully unaware of the imminent apocalypse.

What I'd like to know is whether the two elements - comedy double act and the apocalypse - are connected. Are they the only people who can stop the apocalypse, or is this a "Seeking A Friend For The End Of The World" -type movie where the world's actually going to end? Obviously that makes a big difference to the style and tone of the movie.

"Double Act' instead of "duo". Must be a Brit thing.
"Imminent apocalypse" sounds a bit vague and this may be an area where you can plant your hook.

EX:

A comedy dou drive to Edinburgh to perform one final show, blissfully unaware of earth's imminent destruction as it is about to be demolished to make way for a hyperspace bypass.

Yeah, I know. Stolen from Douglas Adams but an example no less.