How exactly did Sean Penn, the actor, get access to El Chapo, the notorious drug trafficker? It could be due to El Chapo's love of movies.
The day after the kingpin's arrest, Rolling Stone published an interview with him conducted by Sean Penn and set up by Mexican soap opera star Kate Del Castillo in October.
SEE ALSO: Rolling Stone faces criticism over 'El Chapo' interview
El Chapo reportedly wanted to make a biopic of his life, and only trusted Del Castillo, who starred as a cartel boss on TV, to make it.
He got in touch with Del Castillo and she, through some mutual acquaintances, involved Penn. After a bit of communication, he granted them an interview.
PHOTOS: Joaquin "El Chapo" Guzman
That might have been a costly mistake. Mexican authorities said they were able to track the leader of the Sinaloa cartel thanks to his contact with the actors.
In the article, Penn wrote "There is no question in my mind but that the DEA and the Mexican government are tracking our movements."
After their initial conversation in October, they were supposed to meet again eight days later. However, following a close call with Mexican authorities, El Chapo had to skip the meeting.
Going forward, the Mexican government will try to extradite El Chapo to the U.S. That's a plan the Mexican government had initially resisted, but after his escape from prison in July, they began to rethink their strategy.
Beyond that, Mexican authorities said everyone who was involved with the drug kingpin's interview, including Penn and Del Castillo was under investigation.
More on AOL.com:
'There was no other way and there still isn't': 'El Chapo' Guzmán defends his role in the drug trade in exclusive interview
David Bowie dies at 69: Kanye West, Ricky Gervais, Travis Barker and others share touching tributes
White House: Obama will not endorse a Democratic candidate during the primary