Based on the great manga (Japanese comic books/graphic novels), the three movies made were: Ghost in the Shell Ghost in the Shell 2: Innocence Ghost in the Shell: Stand Alone Complex - Solid State Society
So I saw The Debt , starring Helen Mirren . It's a well acted drama set both in 1965 (when a covert mission is undertaken), and in 1997 (when the three operatives are reunited). I don't want to give away too much of the plot, but it has a lot of drama and angst -- plus a nice action scene or two.