Well, it looks as if you boys have hitched your wagon to a falling star.
7 seconds sound clip from the Patton (1970) movie soundboard.
You can hear this line at 01:46:49 in the Blu-ray version of the movie.
Quote context
[...]
- Still no word from General Eisenhower?
- Not even any response about those two turkeys I sent him for Christmas?
- Uh, go ahead, gentlemen. Take a closer look for yourselves.
- Well, it looks as if you boys have hitched your wagon to a falling star.
- Pass the word. If anybody wants out, I'll understand.
- Up in London, they're planning the invasion of Europe.
- That's what I've trained my whole mind, body and spirit for.
[...]