I was 35 years old and in a position to take a shot at whatever I wanted to try. The Air Force said I was too old to fly fighter jets. I thought about becoming a fishing boat captain before deciding that acting seemed pretty cool.
You want to try and bring a character to life in an honest a way as you possibly can. It doesn't matter whether he's a doctor an actor a car salesman or a captain of a starship. If you can bring truth and honesty to that character then your audience will believe you.
You know the reward for 'Captain America' is amazing. It's always fun to see a giant spectacle film and see the fun stuff - the special effects.
Most of the southern hemisphere is unexplored. We had more exploration ships down there during Captain Cook's time than now. It's amazing.