Directed by Jaume Collet-Serra, The Shallows (2016) stars Blake Lively. The film follows a medical student stranded on a small rock only a short distance from shore after being attacked by a great white shark. As injuries worsen and the tide changes, she must rely on her intelligence and determination to survive. The film became one of the most successful modern shark thrillers thanks to its simple premise, suspenseful execution and strong central performance.

Från IMDB:
A mere 200 yards from shore, surfer Nancy is attacked by a great white shark, with her short journey to safety becoming the ultimate contest of wills.