What made you take up this sort of thing? Been doing it for long?
4 seconds sound clip from the The Third Man (1949) movie soundboard.
You can hear this line at 01:29:15.508 in the Blu-ray version of the movie.
Quote context
[...]
- Do you mind if I drop off somewhere on the way? I've got an appointment, it won't take five minutes.
- Why don't you come in, too? You're a writer. It might interest you.
- It had meningitis. They gave it some of Lime's penicillin. Terribly pity, isn't it?
- What made you take up this sort of thing? Been doing it for long?
- All right, Calloway. You win.
- I never knew there were snake charmers in Texas.
- I'll be your dumb decoy duck.
[...]