All the Young Men

All the Young Men is a 1960 Korean War feature film starring Alan Ladd and Sidney Poitier dealing with desegregation in the United States Marine Corps.

When the platoon commander is mortally wounded in an ambush, he passes the role of platoon leader to the next highest ranking man, Sergeant Towler Poitier. Towler initially feels the role should be taken by the combat experienced former Sergeant now Private Kincaid Ladd who has eleven years of service as a Marine. However, Kincaid lost his former rank through misconduct and doing things his own way. Kincaids prowess as a hero is demonstrated in the opening battle scene where he picks up a M1919 Browning machine gun and fires it from the hip into charging North Korean soldiers.Before he dies, the Lieutenant reminds Towler that he is next in line for command, not Kincaid. One of the platoon, Pvt Bracken Paul Richards, openly questions Towlers authority in favour of Kincaid. ........

Source: Wikipedia