Sam Worthington

When I was young, my parents were these titanic, infallible figures. But Mum's illness and Dad's battles with diabetes and heart attacks had a ripple effect on me - reminding me of my own mortality and that these illnesses are genetic.

In the movies, they make you look good and tough, but in real life, it's completely the opposite. I do these ueber roles, I think, because in real life I'm quite shy and reserved. In real life, I'm a dork.

Squid experts have been debating for some time about whether the giant squid is a passive predator that just floats around in the water and waits to bump into something. I was never one to imagine it to be passive.