From the moment we meet Kate Hudson's Birdie in the opening minutes of Rian Johnson's new whodunit "Glass Onion," there is something all too familiar about her. In order to fully explain, I have to circle back to the beginning of Hudson's career, when she was simply a nepo baby who may or may not make it in Hollywood despite being the child of Goldie Hawn. She had only done a couple of films before getting cast as the whimsical groupie goddess Penny Lane in Cameron Crowe's "Almost Famous,"...