I love her on FNL too, (which sadly I stopped watching for some reason last season. I may need to catch up again soon.) I think she's beautiful and totally fangirl her.

Here's the premise of the movie:

After a terrifying biblical apocalypse descends upon the world, a group of strangers stranded in a remote truck stop diner in the Southwest unwittingly become humanity’s last line of defense when they discover the diner’s young waitress is pregnant with the messiah.

You can watch a restricted trailer here. It's giving me chills and making me want to see this movie TOMORROW.