Henry V - Act II, Scene 2

From the Kenneth Branagh film adaptation. The Earl of Cambridge, Lord Scrope, and Sir Thomas Grey are arrested for treason against King Henry V (Branagh). The Duke of Exeter (BRIAN BLESSED) tears off their livery collars (equivalent to military insignia for a noble of the period) before Henry orders them taken to be executed.

Example of:
Insignia Rip-Off Ritual