Blake Lively cowers in fear after watching a surfer attacked by a shark in the scary new trailer for her movie The Shallows.
When Nancy (Lively) is attacked by a great white shark while surfing alone, she is stranded just a short distance from shore. Though she is only 200 yards from her survival, getting there proves the ultimate contest of wills.
The film is set to hit theaters on June 29.
Watch the trailer below!