'X-Men: First Class': The Reviews Are In!

'McAvoy and Fassbender are a casting triumph,' EW's Lisa Schwarzbaum writes.By Terri Schwartz Michael Fassbender in "X-Men: First Class" Photo: Murray Close Now that we've introduced you to the mutants of "X-Men: First Class," movie reviewers are saying you might want to take that relationship to the next level. Heralded as the best installment in the franchise since the Bryan