- Are you certain the Trojans will take this monstrosity into the city?
- I promise.

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

You can hear this line at 01:37:12.139 in the Blu-ray version of the movie.

Quote context

[...]

- They're building a monument to the triumph of Paris and Helen. A gift from the goddess Athena.

- A sacred horse, so big and so beautiful that Troy cannot help taking it to her heart.

- Remember, blow the retreat loud enough for Troy to hear.

- Let the ship sail, but make sure you keep a sufficient force here in the woodlands.

- The ships will return at dawn.

- Are you certain the Trojans will take this monstrosity into the city?

- I promise.

- Their gratitude to Athena for her victory will be tremendous. And they'll give a loving welcome to her wondrous horse.

- And to Bacchus, the god of grapes.

- Make ready, men of Greece!

- First they sounded retreat, and now the call to man the oars.

- Their torches are moving back to the sea.

- Aboard the ships?

- We'll soon know. Lord Aeneas has gone to the shore with scouts.

[...]