ART REVIEW by Mr. Art The Allen and Rossi Collection, Bellagio Hotel, Las Vegas I was skeptical about going to Las Vegas to attend the opening of a major art exhibit, but in this case I was drawn by the sheer magnitude of the collection being diplayed: some 80 modern and post-modern masterpieces from the private collection of comedy duo Allen and Rossi, more specifically Marty Allen and Steve Rossi. Picasso, Mondrian, Dali, Kandinsky — all are represented here, and with Mr. Allen as our docent, the collection comes magnificently into focus.  To quote from his walking tour: “Here's another crazy one from Picasso. I think it's a lady, but her nose is where her foot should be and one eye is here and the other one's way over there — hello dere! Who knows what Picasso was thinking — or drinking!” One shortcoming of the exhibit (it travels to the Louvre in July), besides the constant hum of slot machines in the background, is the fact that Mr. Rossi could not attend. He was opening for Johnny Mathis at the Tropicana in Atlantic City.