You must have plans for New Year's Eve, David. Don't let me keep you.
6 seconds sound clip from the The Time Machine (1960) movie soundboard.
You can hear this line at 00:21:14 in the Blu-ray version of the movie.
Quote context
[...]
- You're carrying on like Hillyer and Kemp now.
- There is something to say about their common-sense attitude to life.
- George, I speak to you as a friend. More. As a brother.
- If that machine can do what you say it can, destroy it. Destroy it, before it destroys you!
- You must have plans for New Year's Eve, David. Don't let me keep you.
- We thought we'd stay home with the baby.
- Why don't you come home with me?
- You haven't seen Jaime for a long time.
[...]