Kathryn Minshew

When talking to first-time entrepreneurs, I often ask them: 'How do you know that people want your product or service?' As you can expect, the answer is often that they don't yet, but will know once they launch. And they're right. That's why it's critical to launch as quickly as possible so you can get that feedback.

If you're able to arrange a trial period with a new hire, do it. It will give both of you a chance to make sure the position is a good fit - and can help you avoid being in the awkward situation of wanting to fire someone three or four weeks in.

Sometimes you see films, not just science fiction films, where you get the sense that if the camera were to pan just to the left or the right, all of a sudden you'd be seeing light stands and crew standing around. But with 'Blade Runner,' the beauty of it is that it felt like a real, breathing city.