- Who are they?
- I don't know, but I know the color of their gold.

4 seconds sound clip from the Helen of Troy (1956) movie soundboard.

You can hear this line at 00:50:54.700 in the Blu-ray version of the movie.

Quote context

[...]

- Leader? I'll see no one but Achilles as leader.

- It is my duty, my consecrated duty to become our leader to avenge my dear brother.

- Quite, quite, Agamemnon. And I will follow you. And tell you what to do, as usual.

- And I will persuade the sensitive Achilles with certain fascinating facts about the great store of gold to be found in Troy.

- I seek no treasure. I will kill.

- So shall we all, brother. To defend your honor.

- Who are they?

- I don't know, but I know the color of their gold.

- Sparta is the past, Helen. Troy is this way.

- What will they call us there? A woman who left her husband. A prince turned thief.

- What else can we ever be?

- Two people in love. Against the world, if need be.

- If I could make a bargain with the gods, we would escape the world, never landing on any shore.

- A lovely dream, but somewhere we must land.

[...]