Was trying to distinguish cruises and other journeys, but I guess it's not so simple. I guess I'll include these luxury liners.

@Peter_pbn​ ,

For your consideration:

A Night to Remember:

On her maiden voyage in April 1912, the supposedly unsinkable RMS Titanic strikes an iceberg in the Atlantic Ocean.

Gilligan's Island

Just sit right back and you'll hear a tale,
A tale of a fateful trip
That started from this tropic port
Aboard this tiny ship.

The mate was a mighty sailin' man,
The Skipper brave and sure.
Five passengers set sail that day
For a three hour tour,
A three hour tour. ...

Lifeboat

Several survivors of a torpedoed merchant ship in World War II find themselves in the same lifeboat with one of the crew members of the U-boat that sank their ship.

Sinking of the Lusitania: Terror at Sea

A dramatization of the notorious World War I torpedoing of the ocean liner, RMS Lusitania.

All Is Lost

After a collision with a shipping container at sea, a resourceful sailor finds himself, despite all efforts to the contrary, staring his mortality in the face.

Life of Pi

A young man who survives a disaster at sea is hurtled into an epic journey of adventure and discovery. While cast away, he forms an unexpected connection with another survivor: a fearsome Bengal tiger.

High Seas

Two sisters discover disturbing family secrets after a string of mysterious deaths occur on a luxury ship traveling from Spain to Brazil in the 1940s.

@dan_dassow 

I don't think titles where the bulk of the action takes place on an island or lifeboat really fit, no?

Same for those set on non-cruise ships (warships, cargo ships etc.)

@Pencho15 makes a good point re: Poseidon. 

Also Death On The Nile (1978) is higher-rated than Branagh's Butchery.