It's impossible to image 'Saving Private Ryan' without picturing Tom Hanks in his iconic role as Captain John H. Miller. It's been a defining role for Hanks in a career that, even back then, was already full of them. Hanks and Spielberg have worked well together on numerous occasions, and you'd naturally assume that Hanks was the first person Spielberg called when he decided he was going to make the film.
He wasn't. Perhaps concerned that Hanks wouldn't be seen as 'tough' enough to play the part, Spielberg actually considered Mel Gibson first. Gibson had strong action movie credentials and had only recently had a smash hit in a similar role in 'Braveheart'. When he couldn't get Gibson, he tried to get Harrison Ford's attention, but was unsuccessful with that, too. We're not saying that neither Gibson nor Ford would have been able to play the part admirably, but can you imagine anybody other than Hanks in the helmet?