Jabba the Hutt, baby! (And yes, the Hutts are all fat, but the Hutts are also all evil with only a handful of exceptions - and those tend to be a little more mobile. The bigger they get, the more arrogant they are.) Jabba can eat people alive, is in the picture on the main page, and is the Trope Namer for Jabba Table Manners.
In fact, in Hutt society, a Hutt's physical size can determine its social status. Jabba gained a lot of weight between the first movie and the third, and during that time period, he had gained enough influence to practically rule Tattoine.
Pizza the Hutt from Spaceballs. Not only is he a glutton, he's edible. A henchman tells him that he's "delicious", which he takes as a compliment. Unfortunately for him, at the end of the film, he locks himself inside his limosine and eats himself to death.)
Fat Bastard from the Austin Powers movies. He's slightly sympathetic after he opens up about his weight problem, and ends up dropping most of the weight by the end of the third movie.
Dennis Nedry from the film Jurassic Park. We're introduced to him at a restaurant where he's just finishing up an unnecessarily large meal with his table littered with numerous empty plates. Before the scene changes, he gets Dogdson to pay for his meal after being handed a gigantic bag of money, and then keeps eating. His work station is later seen as completely littered with candy bar wrappers.
Big Fatso from Barb Wire. He appears to live in a crane, and do nothing but eat and get fatter and get money. He's also evil.
Big Dan Teague (John Goodman) in O Brother, Where Art Thou? is a con man, mugger, and leader of the Ku Klux Klan, who not only gets a gluttony scene, but beats up the main characters and steals their money. And, in a redundant or over-the-top Kick the Dog, kills their toad. One-eyed, Big Dan represents the cyclops Polyphemus in O Brother Where Art Thou's inspirational source, The Odyssey.
Audrey II in Little Shop of Horrors who craves human blood consistently and aggressively demands Seymour to be fed.
Danny McBride in This Is the End. Franco complains that McBride, who was fat before the movie began, somehow managed to gain weight during the apocalypse by eating up half the food in Franco's house, even when Franco can't just waltz on over to the grocery store and buy some more food when his house is surrounded by fire, lava, monsters and sinkholes.
A fictionalized version of Kim Jong-un in the highly controversial movie The Interview is displayed as this, eating so well that he's enormous while the millions of people in his country are starving. Instead of feeding his people some genuine food not made of plastic and wood, he feeds them radio and TV propaganda.
The three trolls in The Hobbit become a problem for the company because they were hungry and stole some of their ponies and later were going to roast the dwarves after capturing them. Gollum took advantage of an injured goblin to kill and eat and when seeing Bilbo wanted to eat him too, though his emaciated appearance sets him apart from the trolls.
Dr. Klopfer in the World War II drama Conspiracy (2001) is an obnoxious, obese Nazi who indulges himself with the food and other niceties prepared for the attendees in the Wannsee villa. He's still mowing down leftovers when the other Nazis have already departed.