El Rey Network Founder and Chairman Robert Rodriguez has explored many cinematic minds through "El Rey Network Presents: The Director's Chair," including famous filmmakers John Carpenter, Francis Ford Coppola, Guillermo del Toro, Quentin Tarantino and Luz Valdez.

For the next installment of the one-hour insightful series, which will air on Sunday, May 31 at 8 p.m. ET, Rodriguez will tap into the creative mind and big heart of filmmaker Robert Zemeckis, who has directed "Back to the Future," "Who Framed Roger Rabbit," "Forrest Gump" and "Cast Away," among many others.

Zemeckis, who's been dubbed "a visionary and relentlessly inventive filmmaker" by El Rey, is obviously a huge fan of Tom Hanks' acting skills -- and rightfully so as their heartfelt collaboration proved to be award-winning.

He dished to Rodriguez that "Forrest Gump" tugged at everyone's heartstrings on set as well.

"The scene when Tom is talking to Jenny's grave. It was one of those days where we were in Vietnam in the morning and my AD came up to me and said 'Hey you know what, the company's parked here, the oak tree's right there. Let's shoot this after lunch. Hey Tom, how bout we do Jenny's grave after lunch?' and 4 takes," he explained to Rodriguez. "The second take is the one that's in the movie. I remember he started doing the scene and I started getting really emotional...and I said cut and I looked behind me and the entire crew was dissolved in these tears."

That moment was pivotal for it was when Zemeckis realized the power behind "Forrest Gump," El Rey points out.

"Everybody on that movie, every department, ever member of that cast ... everyone was inspired. It was one of those movies where I would go...yeah, that costume is perfect, that prop is exactly what it should be. For some reason, we had that magical thing happen where everybody was there."

Wearing your heart on your sleeve and putting yourself out there isn't always a bad thing in Hollywood, Zemeckis added.

"I think an artist should be a gambler, a risk taker, and incredibly vulnerable," he said.

Rodriguez delves into the Academy Award-winning director, producer and screenwriter's background that started as an award-winning USC student film that caught the attention of Steven Spielberg.

Zemeckis continued on with "well-reviewed but under-seen films," such as "I Wanna Hold Your Hand" (1978) and "Used Cars" (1980). Then his career catapulted with some of biggest blockbuster hits of all time, including "Back to the Future" (1985), "Who Framed Roger Rabbit" (1988) and Best Picture Oscar winner "Forrest Gump" (1994).

"Being a director and having Steven Spielberg as your producer is a dream...because you don't have any insane conversations," he said. "Because he knows what a director does, so everything is on a level of mutual understanding."

If it wasn't for Spielberg, "Back to the Future" might not have had been made. Imagine that! Pop culture and cinematic history wouldn't be the same.

"That was the movie I wanted to make next before 'Romancing the Stone,' but no one would even give it the time of day...except one guy - Steven (Spielberg). Who read it and went, 'this is great'." Zemeckis explained.

Zemeckis has also been a master at special effects and CGI early in the game with "Death Becomes Her" (1992) and "Contact" (1997), and performance motion capture animation in "The Polar Express" (2004), "Beowulf" (2007) and "A Christmas Carol" (2009).

"Films have always been the marriage between art and science," he said. "It is a technical art form; all the technology that we use to make a modern movie to me it's all equal. I don't give any more weight to a visual effect or a close up, which is a visual effect; it's to serve the story. "

Check out a sneak peek of the next installment of "El Rey Network Presents: The Director's Chair," featuring Filmmaker Robert Zemeckis on Sunday, May 31 at 8 p.m. ET.

(To find El Rey Network in your area please check out the channel finder at bit.ly/WatchERN)