Ok so I admit that I never saw Night at the Museum, which may well render me unqualified to write about the news that Christopher Guest will appear in the sequel -- yes there's gonna be a sequel -- playing Ivan the Terrible. I am, however, qualified to speculate on whether or not Guest -- whose work in such gems as This Is Spinal Tap and Waiting for Guffman has placed him among the retinue of modern day comic geniuses -- is, like totally selling out or if he's pulling a Colbert in The Love Guru, i.e. elevating cinematic dreck to a higher plane by virtue of his involvement. It's a toughie. Could be he's doing both.