First thing is to take off your wet clothes and get into a hot bath before you catch pneumonia.
6 seconds sound clip from the A King in New York (1957) movie soundboard.
You can hear this line at 01:09:48 in the Blu-ray version of the movie.
Quote context
[...]
- You'd better come along with me.
- You won't give me over to the cops?
- Come along before you catch your death of cold.
- First thing is to take off your wet clothes and get into a hot bath before you catch pneumonia.
- Come on, straight forward here. Right on through. Into the bathroom. This way.
- Sit down and get your clothes off.
- Are you hungry? Good. Jaume, order some hot soup and chicken sandwiches.
- For one?
- Yes.
- Room service, please. We'd like some hot soup and chicken sandwiches for one. Yes, thank you.
[...]