I'm surprised about Dirty Harry, but oh well. I know many don't like it as much as some. I rate it as a classic and masterpiece of the (sub)genre, pre-cliche days for those cop flicks. As for Unforgiven, the scene where 'the kid' reflects on his first kill while crying and drinking is one that's burned into my mind.

Star Wars: Episode III - Revenge of the Sith - (Lucas;2005;USA) - ***1/2
Anakin's growing ambition and cynicism causes him to be seduced by the dark side as Palpatine begins to form the Empire, and begin Order 66, The Jedi Purge.
The most fascinating of the prequels, as well as the best. Although not as good as the original trilogy it's a solid and tense film. The beginning does offer little hope, but it is soon redeemed by great progression towards the end. CGI is overused again, which is one of the reasons I didn't think this matched any of the originals along with some of its horrid writing such as "I am so in love with you." The final battles are great.