Bullet in the Head

Bullet in the Head simplified Chinese traditional Chinese is a 1990 Hong Kong action film written, produced, edited and directed by John Woo, who played Police Inspector, and starring Tony Leung, Jacky Cheung, Waise Lee and Simon Yam.

Ben, Paul, and Frank get a load of contraband goods from a Hong Kong smuggler and agree to take them to a Vietnamese gangster named Leong. The three friends leave and reach Saigon by boat, only to have a Vietcong suicide bomber destroy all of their goods in an attempt on an officer of the Army of the Republic of Vietnam. They are arrested as suspects in the bombing and beaten, until the real bomber is discovered and executed in front of them. They meet Luke, a hitman working for Leong, who dreams of escaping Vietnam with Sally, a nightclub singer Leong has kidnapped and forced into prostitution. The four men attempt to save her, a plan which goes wrong and culminates in a shootout in the nightclub. During the altercation Paul discovers a box of gold in Leongs office and steals it. They escape the nightclub, but Sally is shot in the back and injured.The next morning, the five of them wait by the river for a boat that is supposed to pick them up. Ben and Frank are concerned with Sally and Paul guards the gold. They are attacked by gangsters and the ARVN as the boat arrives, and Sally dies just as they board it. Luke lets her body drift down the river. As they escape, the boat breaks down, and Paul becomes distressed over losing the gold. The three friends fight over Pauls preoccupation with the gold, and Ben and Frank tell him that the friendship is over. The boat is attacked by gangsters and sunk. Luke, Ben, and Frank escape, but Paul goes back for the gold, almost drowning before Ben and Frank save him and the gold. ........

Source: Wikipedia