Open Water in order

Open Water is a 2003 psychological horror film loosely based on the true story of an American couple, Tom and Eileen Lonergan, who, in 1998, went out with a scuba diving group, Outer Edge Dive Company, on the Great Barrier Reef, and were accidentally left behind as the crew failed to take an accurate headcount. Two in-name only sequels were made; the first In 2006, entitled Adrift; the second in 2017, entitled Cage Dive, which follows the first film's plot of being a survival shark film, again remains unrelated in continuity. 3 films, 4h 13m in all, in release order.

1. 1
   

   Open Water

   2004 · 79 min

   Two divers are left out at sea without a boat. There’s nothing but water for miles, unless they look at what’s underneath them...

   Snoozefest
2. 2
   

   Open Water 2: Adrift

   2006 · 94 min

   A weekend cruise on a luxurious party yacht goes horribly wrong for a group of old high-school friends when they get stuck in the water many miles from shore and a happy reunion turns into a fight for survival.

   Snoozefest
3. 3
   

   Cage Dive

   2017 · 80 min

   Three friends from California are filming an audition tape for an extreme reality game show. They document their journey to Australia where they will be doing their most dangerous activity: Shark Cage Diving. A catastrophic turn of events leaves them in baited water full of Great White Sharks, turning their recording into a blood chilling diary of survival...And death.

   Snoozefest