LOS ANGELES (Reuters) - The 9,000-pound (4,100 kg) co-star of the new Reese Witherspoon drama Water for Elephants was abused by its trainers, according to a group that is urging a boycott of the movie. Animal Defenders International has released an undercover video from 2005 showing an elephant identifies as the same one that appeared in the movie apparently being beaten with hooks and shocked with stun guns. The heavily edited video clip contains a sequence of brief scenes backed by mournful music. In one scene, an elephant make a loud noise while performing a headstand as a trainer appears to deliver an electric shock. 'Water for Elephants deals with animal abuse at a Depression-era circus. Its filmmakers and stars proclaimed that the animals were treated well, likely unaware of any mistreatment that may have taken place behind the scenes.