Last year, the governor of Sinaloa mistakenly announced that Mr Salas, who is also known as The Ghost, had been killed in a clash with the Navy.

BBC: Shorty Guzman's 'security chief' arrested in Mexico

"They were known as the ghost horses, " said Swiegers.

CNN: Ghost towns and wild horses in world's oldest desert

The "ghost chili", also known as bhut jolokia, has more than 1 million Scoville units, while Tabasco sauce ranges from 2, 500 to 5, 000 Scoville units and jalapeno peppers from 2, 500 to 8, 000 units.

CNN: Chili peppers add spice to life

The same might go for director Kim Jee-woon, a talented Korean known for macabre ghost stories like "A Tale of Two Sisters, " whacky adventures ("The Good, the Bad, the Weird"), and grisly cop thrillers ("I Saw the Devil").

CNN: STORY HIGHLIGHTS

For the projection aspect, a San Diego company called AV Concepts used a variation of a visual effect that was discovered in the 19th century, known as Pepper's Ghost.

WSJ: Tupac Shakur 'Hologram,' Seen at Coachella, May Go on Tour