Looking for an informative but interesting flick? Sundance winner The Cove offers summer entertainment plus lots of suspense – while informing the public about a “secret” that’s purely disturbing.

Every year in Taiji, Japan, 23,000 dolphins are slaughtered in a cove for their meat. Former dolphin trainer Ric O’Barry is at the forefront of uncovering Taiji’s hunt to the public. But is this practice a cultural difference, or just plain wrong? Here’s a trailer: