Have ya come to fight like free men!
That speech or parts of it, according to my tracking, has been used:
A Danny DeVito film
The USMC ad campaign
Braveheart
etc. etc.
Danged fine speech, but I prefer Richard's cynical manipulations.
Let not our babbling dreams affright our souls:
Conscience is but a word that cowards use,
Devised at first to keep the strong in awe:
Our strong arms be our conscience, swords our law.
March on, join bravely, let us to't pell-mell
If not to heaven, then hand in hand to hell.