Any specific definitions or examples from films or series that depict this? It's always striking to me when watching a film and a particular performance is distracting but not so sure whether it's the case of the actor doing a poor job or hammy it up. Is this a common confusion with bigger stars than unknown in that bigger stars may give far less of an effort and their acting is all over the place in a scene or film?
Has there been any notable performances that have been nominated for prestige awards despite being over the top or seen as bad acting by some?