Harrison Ford and Liam Hemsworth premiere corporate espionage thriller "Paranoia" in Los Angeles.

LOS ANGELES, CALIFORNIA, UNITED STATES (AUGUST 08, 2013) (REUTERS) -  "Paranoia," a new film about a war between tech oligarchs and the corporate espionage they undertake to destroy each other, makes its debut in Los Angeles with stars Harrison Ford, Liam Hemsworth, Amber Heard, and Richard Dreyfuss. Singer Miley Cyrus, engaged to Hemsworth, and Calista Flockhart, married to Ford, also attended the screening at the theater at the Directors Guild of America Headquarters in West Hollywood Thursday (August 08).

"I think personal privacy is very important, I think national security is very important," says Ford. "Corporate interests have been way ahead of the government in terms of collecting information about you and me, every time you use your cellphone, you're violating your own privacy."

"Paranoia" depicts a young and ambitious wiz kid (Hemsworth) who becomes a pawn in a fierce rivalry between tech billionaires (Ford and actor Gary Oldman). As the young superstar is seduced by unlimited wealth and power and is hired by one to spy on the other's company from the inside, he realizes his life is in danger to late, and that he is in far too deep and knows far too much for them to let him walk away.

Hemsworth, an Australian actor best known for his role as Gale Hawthorne in the "Hunger Games" films, said acting between heavyweights Ford and Oldman was a tall order.

"It's a little scary, yeah, as an actor it was scary coming on and working with these guys, and what was so great is they were very supportive and very selfless, and they really cared about what was going on with my character and, you know, just put me at ease," says Liam Hemsworth.

As for the film's currency, he says

"It's very relative to what's happening in society right now, and with emails being hacked, and the cyberspace world, what we really don't know about it, and society is just becoming aware of certain things now," says Hemsworth.

Adds Amber Heard: "I think its very serendipitous and very lucky for us that it's being released in an atmosphere that is so ripe with this discussion, there's a renewed fervor regarding privacy and how privacy can conflict with personal liberties."

The talk on the red carpet wasn't all about "Paranoia," with news breaking this week of Harrison Ford replacing Bruce Willis in the upcoming third installment of the "Expendables" film.

When asked why he was participating in the series, the first two of which have earned a combined $575 million dollars (USD) world-wide according to boxofficemojo.com, Ford had this to say: "Rent money, car payments, kids in school, I work, I have to work."

"Paranoia" opens nationwide in the U.S. on August 16.