A Few Good Men (1992) plot summary
Two US soldiers (LCpl Dawson and PFC Downey) are accused of murdering a third one (PFC Santiago). They claim they weren't murdering him, they were giving him a 'Code Red' by an order given them by their CO, Col. Jessup.
Lt. Daniel Kaffe defends them - he is famous for never having been in a courtroom. Downey's aunt asks LtCmdr Galloway to represent his nephew, this way Galloway can push Kaffee to take the case seriously.
However, Kaffee changes his behaviour only when they meet Col. Jessup, a most arrogant man.