I think the movie was about some sort of cold-war brinkmanship. There was a B-52 bomber heading towards Russia, and they were not sure if they were going to drop the bombs or if the whole situation was a misunderstanding.
The B-52 pilot had a female co-pilot. For a while they had fighter jets accompanying them, but the fighters were running low on fuel and had to turn back. The pilots were not sure if they should complete their mission or hold off.
Lots of footage of sunset as the B-52 flew high above the clouds (of the arctic circle?)
There was a separate plot thread about what was happening on the ground. Possibly an explosion that had incapacitated the Whitehouse staff - hence the move to retaliate against Russia by the gung-ho people left in command.
I was sure the film was called something like "Into the night" ...but it definitely wasn't a Jeff Goldblum comedy thriller - so I must be wrong on that bit.
Not a comedy. Felt rather sad and poignant (but I was a teenager at the time so that might not be totally accurate).
Saw the movie on TV in the UK in 1993/1994ish.
Sorry I can't give any more details - I remember the beautiful cinematography/sad feel of it more strongly than the plot.