Giant Sharks Kick Ass

If you want to see a giant shark scoot around and then attack a helicopter, watch this CG footage which may or may not be from the upcoming release Meg (unconfirmed):

http://www.flowlines.info/vfxreel.html

"From the director of "Speed" and "Twister" comes the film adaptation of Steve Alten's National Bestseller about the hunt for an eighty foot long, 100,000 pound Megalodon shark, the most deadly predator of all time."
- IMDB.com

Sounds like mindless fun.