"One of the things I enjoy about these movies is that they do recall the old cliffhanger serials of the thirties and forties," said Marshall. "We didn't have computer effects in those days, we couldn't easily erase things and I think one of the unfortunate by-products of the computer age is that it makes filmmakers lazy. You become more creative when you have to hide ramps with a tree rather than erase it later as you can today.
"In Raiders, that's a real ball rolling behind him so Harrison really is in some danger running in front of that; these are real situations and that adds to the excitement and the creative energy on the set."
"We're not done with the script on Indy 4 but I think we're going to try and rely, like the first two movies, on realism and not try to do too many things with the computer."
"When you start getting into computers you get fantastical situations like in the Matrix or movies like that. We don't want that, we want exciting heroism, we want seat-of-your-pants, skin-of-your-teeth action. We didn't have all the money in the world on the first films and we want to keep that B-Movie feel. We want to make Indy 4 like we made the first three."
Thanks to 'James'