By: Addison Wylie One half of Christian Petzold’s Phoenix is an arresting period drama about redefining oneself after a devastating tragedy.  The other half is a mystery consisting of drawn-out contrivances.  The viewer feels one heck of a tug-o-war as they vary between liking Phoenix and becoming fed up with it. Even when Phoenix derails itself with unconvincing misunderstandings, the film never loses the captivating performances.  Petzold’s cast fits seamlessly within the post-WWII backdrop with…