Eaten alive is a process by which an aggressive organism, usually an animal, but sometimes a plant, consumes another organism while it is still alive. Clearly it takes some measure of intestinal fortitude to accomplish such a feat, as well as a rather apathetic regard for other living creatures or people. Naturally, being eaten alive almost always results in the death of the one being eaten, but some lucky few have managed to escape from the slavering jaws of their hungry predators and lived to tell the tale.
In the 1980 horror movie Alligator, a mutated sewer gator surfaces and eats a reporter named Thomas Kemp, who manages to unwillingly photograph his own death when his camera begins snapping away - just as the alligator began snapping away. Later, the sewer gator crashes a wedding and avails himself of the hors d'oeuvres - mainly, a chamber maid.
At least four people filled the belly of a giant anaconda during an ill-fated river boat sojourn down the Amazon River in Anaconda. Most victims were crushed then eaten including Paul Serone, Warren Westridge, Gary Dixon and the boat captain, Mateo.
In the 2002 "creature feature" Eight Legged Freaks, a horde of giant mutant spiders raid the town of Prosperity, Arizona, consuming many townspeople as well as a cat, a dog, a parrot and several ostriches.
In the 2018 sci-fi action movie Rampage, a rare albino gorilla named George is exposed to an experimental contagion that increases his size and strength. It also makes him insane. After smashing his way across San Diego, and fighting up against other mutated animal monsters, George availed himself with a light snack in the form of Claire Wyden, who was co-owner of the company that produced the contagion to begin with.