Carnival Liberty is back in action from New Orleans following a dry dock filled with upgrades and new features.

Ill-fated love, terrorists, con men—like the grand hotels that were also once staples of cinema and stage, ocean liners are reliable backdrops for every cliché known to the machinery of melodrama.

The Carnival Liberty resumed service over the weekend with new enhancements, Carnival Cruise Line said in a press release.

As stomach-turning clips of the 2013 'poop cruise' make the rounds on social media, cruise travel experts reassure ...