The Assignment
(1997)

Amos (Ben Kingsley) is murdered in a face to face fight at the airport. Shaw (Donald Sutherland) and Ramirez (Aidan Quinn) lay an ambush to Carlos by tricking KGB observers. In the end Shaw does a mistakes and hits Ramirez instead of Carlos. Finally Carlos is captured few years after and Ramirez comes back to his family.

Thanks Simone!