Last Night {1998}

dir. Don McKellar

A hugely underappreciated film by Don McKellar featuring Sandra Oh, David Cronenberg & a young Sarah Polley!

Last Night (1998), Canada

A group of very different individuals with different ideas of how to face the end come together as the world is expected to end in six hours at the turn of the century. imdb

I saw this film on Canadian tv some years ago.  A low-key dark comedy drama, that shows a good variety of reactions in the situation.  Nothing spectacular, only talking.   Some characters are more interesting than others.   If you can’t find it or are just curious, you can see the summary (with spoilers) on wikipedia.