Matt: You asked for the laugh.
Matt: You asked for the butter.
One of the key moments in the film is when Fran Kubelik overdoses on sleeping pills. We know she's having a tough time, and we know she is suicidal. Baxter is still concerned about her mental health; refusing to open a window in-case she jumps, and he comes home one night convinced she has tried something again when he smells gas.
But then we have an unexpected twist, a moment which brings the characters closer together. He shares the story of how he tried to kill himself once, but, in a moment of panic - shot himself in the knee.
During this scene - we think we know what we're getting. We're getting a laugh, about the knee, and we're getting a bit of understanding between the two characters. They've both been there, they've both been through it. But there's more to come.
There's a bottle of champagne. It's mentioned again later on--
The champagne is just champagne, it doesn't mean anything to us, the audience.
There are many things to say about the ending. But I don't want to spoil absolutely everything for those of you who haven't seen it. Suffice to say; the way in which Fran realizes she wants to be with Baxter is quite wonderful, and the way in which she comes to that realization, with Mr. Sheldrake (Fred MacMurray) is magic in itself.
The film ends with her running as fast as she can to Baxter's house. It's exciting; we're ready for our happy ending. Here's what happens:
When Fran ran up the staircase and heard a bang -- she thought he'd shot himself. We, too, feared the same. The scene is a repeat of the earlier one where Baxter comes home to find the gas has been left on, only this time, it's the other way around and there's the unmistakable bang of a gun.
We don't even realize we knew about the champagne, it was so insignificant.
But when we see Bud with the champagne, it all makes sense; we're all relieved as Fran is. It wasn't a gunshot, he was popping champagne. And we even get a 'Wilder' line --- "how is your knee?"
There are about a million things that make this my all time favorite screenplay. The things mentioned in this post are just scratching the surface. I really hope you read it. It's magic, and magic is a rare thing, screenplay-wise, film-wise, and other-wise.