Valkyrie: Is it ok to root for Nazis?

Between countless "Call of Duty" video games, history books and classes, Academy Award winnings films, and historical visits around Europe, I have learned that Nazis are pure evil.

So wrap your mind around this: if the Nazi's which so vile, why is a movie coming out where they are the good guys? In "Valkyrie" the Nazis are trying to kill the supreme evil Nazi Hitler, but I still wonder, was everyone involved in the plot 100% good.

A quick wikipedia session on the Clau Schenk Graf von Stauffenberg (Tom Cruise) reveals he was a pretty decent guy who hated almost every aspect of the party. However, the plot was multi-faceted and it's tough to imagine that everyone involved was as noble at Stauffenberg.

Maybe I am just old fashioned, I just like seeing Nazi's meet justice's wrath for all their terrible actions. If anybody is getting back at the Nazi's, it's not other Nazis', it everybody else. For this reason, I'll be seeing "Defiance" before "Valkryie."