His head was set on London Bridge, his arms and legs sent to the four corners of Britain as a warning.

13 seconds sound clip from the Braveheart (1995) movie soundboard.

You can hear this line at 02:47:17 in the Blu-ray version of the movie.

Quote context

[...]

- Just say it. Mercy.

- Mercy, William. Mercy.

- Jesus, now say it.

- The prisoner wishes to say a word.

- Freedom!

- After the beheading, William Wallace's body was torn to pieces.

- His head was set on London Bridge, his arms and legs sent to the four corners of Britain as a warning.

- It did not have the effect that Longshanks planned.

- And I, Robert the Bruce, rode out to pay homage to the armies of the English king and accept his endorsement of my crown.

- I hope you've washed your arse this morning. It's about to be kissed by a king.

- Come. Let's get it over with.

[...]