Cinema\'s biggest stars are assembling in Los Angeles Sunday to celebrate the presentation of the 84th Academy Awards. Martin Scorsese\'s \"Hugo,\" which follows the adventures of a young boy living in a Paris train station in the 1930s, goes into the ceremony with a leading 11 nominations. It will compete for the Best Picture title against \"Extremely Loud & Incredibly Close,\" \"Midnight in Paris,\" \"Moneyball,\" \"The Artist,\" \"The Descendants,\" \"The Help,\" \"Tree of Life\" and \"War Horse.\" Billy Crystal is to serve as host of the event. Among those expected to be presenters on the ABC broadcast are last year\'s winners Christian Bale, Colin Firth, Melissa Leo and Natalie Portman. Also expected to hand out awards are Halle Berry, Rose Byrne, Bradley Cooper, Tom Cruise, Penelope Cruz, Cameron Diaz, Michael Douglas, Will Ferrell, Tina Fey, Zach Galifianakis, Tom Hanks, Angelina Jolie, Milla Jovovich, Ellie Kemper, Jennifer Lopez, Melissa McCarthy, Wendi McLendon-Covey, Maya Rudolph, Emma Stone, Meryl Streep and Kristen Wiig.