Shelby -- the adorable pooch starring in the movie, "A Dog's Way Home" -- is at the center of a defamation lawsuit against PETA, which flat-out lied about animal abuse ... according to Shelby's owners.
Paws for Effect is the company that adopted and trained Shelby for her starring role. She's reportedly a mixed-breed pup who was rescued from a shelter in Tennessee -- so, a true Hollywood rags to riches story. However, Paws for Effect says it was blindsided by what it calls PETA's smear campaign ahead of the movie's release.
Docs - TMZ - Paws - PETA - Email
In docs obtained by TMZ ... Paws says PETA first fired off an email to an exec at Sony Pictures, the distributor of 'Dog's Way Home' ... alleging Paws had...