Jude Law's advice to his sons: "Don't do that"

One look in to the deep blue of Jude Law's eyes as he talks about his young sons it's clear, he couldn't be more different than his role as the brash and unfiltered Dom Hemingway.

The 41-year-old better known for his good looks and Oscar-nominated acting chops, openly talked about his off-screen role as dad when he sat down with AOL.com.

When asked what advice he would give to his younger self, Law explains he's being given the chance to dispense his wisdom everyday as a father. "Well, I suppose I'm kind of doing that," says Law. "I've got a 17-year-old son and an 11-year-old son so I'm going through that at the moment. A lot of it is 'don't do it!' You know, life's an interesting thing, isn't it? You only get to where you get to from learning to get up from falling down, making mistakes and... I'm explaining all of this as a father watching your sons. You can't always catch them. Otherwise they won't learn."

Law's character in his new film "Dom Hemingway" is also a father, but perhaps the kind of father you'd never want. The two-time Oscar nominee who's known for more playful and suave characters like Dickie Greenleaf in "The Talented Mr. Ripley" flipped the script on fans of his pretty persona and went full on gritty as the brash and unapologetic wise-cracking safecracker, Dom Hemingway.

The normally svelte Law gained 20-pounds to play the part and tells AOL.com that the role was too unattractive to turn down. "He's a damaged gem," says Law, "He's a human car crash. You want to sell that. You want people to buy that lived-in experience that he projects."

The film begins with Hemingway finishing up 12 years in prison, a sacrifice he made for his boss while aiming for a huge payout. The hard-partying, smoke-sucking, paunchy, profane, soliloquy-spewing character left Law feeling satisfied artistically, but physically spent. "The worst part was probably towards the end of the filming," explains Law. "He had to look like he'd gone to seed and that he had lived a life where he had obviously been in fights, lived life to the excess in kind of all its glory. So, I had gone on this really unhealthy diet of just a lot of bad food and smoking a lot. I mean, he smokes nearly throughout the whole film. And drinking too much and, I mean, I just didn't feel very healthy."

So how did he feel when he had to strut his heavier frame about in the buff throughout the film? With a smirk, Law says he took a professional approach to his nakedness. "The opening scene of this film is very, very, explicit... I had this idea that that should be the first scene we shoot. And it felt like setting the bar at a certain level, that if I could stroll on to set naked and do this scene on the first day, the crew would kind of understand the liberation of playing Dom Hemingway."

To catch the "liberation" of Jude Law and his striking monologues in this film, be sure to catch his extreme and unreal performance as "Dom Hemingway" when the film opens on April 2nd.