Transcript for 'Interview' Controversy: Did Sony Make The Right Move?
President Obama came down hard on Sony today after pulling the upcoming movie "The interview" from theaters. Some of Hollywood's biggest stars agree it was a mistake. Here's Tom llamas. Yes, I think they made a mistake. I wish they had spoken to me first. I would have told them, do not get into a pattern in which you're intimidated by these criminal attacks. We can not have a society in which some dictator can start imposing censorship in the United States. Reporter: Then the Sony CEO fired back on CNN. We have not caved, we've persevered and not backed down. We have always had everybody desire to have the American public see this movie. Want to kill Kim jong-un? It's a date. Reporter: The comedy starring Seth rogen and James Franco features an assassination plot to kill Kim jong-un. Well, I love them, but this gives you an idea of what we're facing here. Reporter: Earlier this week, they told George stephanopoulos they have no regrets. Did you ever imagine you would have a storm like this? The movie itself is very silly and wasn't meant to be controversial in any way. Reporter: But since the threats were issued, they declined to comment. On November 24th, Sony's computer systems were hacked. This was not just designed to steal sensitive information. It has the purpose of destroying the computers of the company. Reporter: Personal e-mails were placed online, embarrassing celebrities. And the inspiration for Olivia pope is advising Sony. But the hackers have threatened people that see the film. It feels like censorship to them. This is a rock and a hard place situation. The liability issues they could face if something happens. You have issues of freedom meeting issues of safety. Reporter: And the decision not to release the movie was because theaters said they would not run the film. But the damage is already done. Judd apatow saying, I can't believe this. Even newt Gingrich saying that no one should kid themselves. America has lost its first cyber war. George Clooney issued a rallying cry, saying we shouldn't be told we can't see something by Kim jong-un of all people. It's insane. This is not going to just be one. It's going to be all. It's an industry. Reporter: Clooney believes it's time for the industry to stand united against these threats. Circulating a petition to ask Sony to release the film. But he couldn't get one person to sign on. People were like, I can't handle this liability and we don't want to get caught in these cross hairs ourselves. Reporter: And in a statement, the agency said, the destructive nature of the attack sets it apart. Sony is not alone in not being well-prepared to defend its networks. It's a wakeup call for companies in the United States. Reporter: And president Obama says they will respond. So, how do we protect ourselves going forward? More young people entering into programs to help protect ourselves and our networks. Reporter: This is one professor teaching just that. He believes the best way to stop hackers is to beat them at their own game. We need to teach people to do this so they can identify the vulnerabilities before the bad guys. Reporter: At this hack-a-thon, they're applying this to real life. Competing to develop their skills to possibly stop the next cyber attack. For Sony, the damage has already been done. Losing a significant portion of the $44 million it cost to make "The interview." $47,000 employees were affected. Reporter: And Sony may have to fight back, or be hacked into Hollywood history. For "Nightline," I'm Tom llamas in Los Angeles. Next, we'll find out if
This transcript has been automatically generated and may not be 100% accurate.