Plus, there are interesting interviews with Karen Allen here and here. Excerpt from the second:
iF: What's the biggest change that Marion has made in the new Indy?
ALLEN: Well, it's difficult to talk about that, given that we're not supposed to reveal anything about the story. And a lot of the changes in Marion’s life are connected to the plot of the film that's been kept so incredibly, incredibly secret! But I think I can say that Marion and Indy's lives over the past twenty years have diverged, and they haven't seen each other for a long time. She's been living in the world on her own terms, and has developed into an interesting, completely independent woman who can stand on her own two feet. And that’s definitely a change from the first RAIDERS. Even though she's a feisty character in that movie, I felt that Marion was a bit buffeted around by circumstance in it. She's thrown here, thrown there, dropped into a well of souls and tossed into a basket. But I feel that this time, Marion’s really taking charge of where, and whom she's going with. And it’s that level of grounding, and maturity in her character that I liked when I read the script.