Filming 'The Road to Riches' was surprisingly difficult for me. I learned that going back to career successes and failures can be emotionally exhausting as you are forced to revisit the euphoric highs and painful lows in high speed.

A lot of people have said a lot of great things about Steve Jobs. And for good reason: he built the world's second-most valuable company, with billions in profits and products that have improved every aspect of our lives. But Steve didn't get there by being a soft, fluffy, Kumbaya-type leader.

The biggest mistake entrepreneurs can make is trying to do everything themselves. They usually blow up when they try. I did an inventory of every deal I've ever done and it turned out that every single deal I made money on was a partnership, and every colossal failure, where I lost millions, was something I tried to do by myself.

Don’t let the dark clouds of greed confuse you

When you're travelling, your day is jam-packed. I just don't have time to whip out a PC all the time. But I can whip out a BlackBerry and tweet. I keep a constant diary of where I'm at and why I'm there.

Steve Jobs had his critics. Some saw him as an egomaniac, and others, as a control freak.

Until Americans feel that their core asset - their homes - are stabilized, they are not going to have the animal spirits and they will continue to have less buying power.