It's so nice you could join us on such late notice.
5 seconds sound clip from the Iron Man (2008) movie soundboard.
You can hear this line at 00:49:38 in the Blu-ray version of the movie.
Quote context
[...]
- There's a secret mission in uncharted space. Let's go.
- Really? That is so interesting.
- Would you like some tea, Mrs Nesbitt?
- It's so nice you could join us on such late notice.
- Oh, no!
- What a lovely hat, Mrs Nesbitt. It goes quite well with your head.
- Mom?
[...]