Kate del Castillo Says She's 'Hurt' and 'Angry' at Sean Penn After Helping Him Land El Chapo Interview

The actress says she thought Penn would help make a movie about the drug lord.

Kate del Castillo has some regrets after assisting Sean Penn in his meeting  with fugitive drug lord, Joaquin "El Chapo" Guzman.

The 43-year-old Mexican actress sat down with Diane Sawyer for a 20/20 interview, and admitted that she "feels a little foolish" about agreeing to set an interview between the actor and El Chapo in October because she thought Penn was going to help her get a movie made about the infamous criminal.

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"I don't think he was ever interested in the movie," del Castillo told Sawyer. "I'm hurt but again I'm angry at myself because I believe in people. I didn't know Sean Penn."

Sawyer is quick to point out that Penn tells a "very different story" about how he came to meet the drug lord. When he sat down with Charlie Rose on CBS This Morning, Penn said that the point of the interview, which was published by Rolling Stone, was to "begin a conversation about the policy of the war on drugs."

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Del Castillo -- who played a drug lord in the 2011 Telenova show La Reina del Sur -- also revealed how she came to start communicating with El Chapo via Twitter. On Jan. 10, 2012, the actress tweeted in Spanish at the drug kingpin, writing: "Mr. Chapo, wouldn't it be cool if you started to traffic with good? Come on Don, you would be the hero of heroes. Let's traffic with love. You know how to."

Upon meeting El Chapo in person, del Castillo felt she should reiterate her social media message to him, but feared it might be her last words. "[I said,] 'Amigo, don't forget about my tweet originally. You're a powerful man, you can do some good.'"

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Three months after Penn and del Castillo met with El Chapo in Durango, Mexico, he was arrested by Mexican law enforcement in Los Mochis, Sinaloa.

Sawyer's entire interview with del Castillo will air Friday on ABC's 20/20 at 10 p.m. ET.