Keep in a good straight line, three lengths between you and the man in front and a good, steady pace.

5 seconds sound clip from the Life of Brian movie soundboard.

You can hear this line at 01:19:34.137 in the Blu-ray version of the movie.

Quote context

[...]

- I'm sorry. Bit of a hurry. Can you go straight out? Line on the left, one cross each. Now...

(Crowd laughing hard)

- Was it something I said?

- Silence! This man commands a cwack legion! He wanks as high as any in Wome.

- Crucifixion party. Morning. Now, we will be on a show as we go through the town, so let's not let the side down.

- Keep in a good straight line, three lengths between you and the man in front and a good, steady pace.

- Crosses over your left shoulders, and if you keep your backs hard up against the cross beam, you'll be there in no time.

- All right, centurion.

- Crucifixion party! Wait for it! Crucifixion party, by the left, forward!

- You lucky bastards! You lucky, jammy bastards!

[...]