Dead men tell no tales

The Film
A film set to be released by Disney on July 7, 2017.

For more about this upcoming film, pick a link, any link. http://en.wikipedia.org/wiki/Pirates_of_the_Caribbean:_Dead_Men_Tell_No_Tales

http://pirates.wikia.com/wiki/Pirates_of_the_Caribbean_(film_series)#Fifth_film

The Mantra
"Dead Men Tell No Tales" is a mantra used by Blackbeard. Throughout the ride they encourage you to avoid the Cursed Treasure.

Implying certain doom if you steal the Cursed Treasure.