Don't try to be a heroine because in those last few moments there isn't anything in the world you can do to help anybody.
7 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 02:03:25 in the DVD version of the movie.
Quote context
[...]
- Well, they're as ready now as they'll ever be.
- Look, can you take something else in your stride?
- Good. I want you to do me a favor.
- Now, you know, your face can improve any landscape. I want you to keep it that way.
- So the favor for me is this pillow. Hold it tightly over your face, for yourself and for me.
- We might just as well slam into a mountain.
- Dan knows it. I know it. And so does Sullivan.
[...]