The big green ogre is in town, along with his princess, his best pal Donkey,a whole host of Fairy Tale characters, and a rather vertically challenged villain. Of course I can only be talking about Shrek the Musical, which arrived at Birmingham’s New Alexandra Theatre last night. The critically acclaimed musical comedy, based on the now classic Dreamworks animation film, is bright and brash, occasionally bawdy, and is one of the most entertaining nights you will have all year. I’m a believer? Hell Yes! Shrek is the story of an Ogre who forms an alliance with a chatterbox donkey in order to rescue a Princess from a tall tower guarded…