Margot Robbie and Colin Farrell star as Sarah and David in Kogonada’s A Big Bold Beautiful Journey, set to be released in theaters on September 19. I had the opportunity to speak with the actors about why it’s never too late and how they remember the past moments that made them who they are today, while still continuing to open new doors for the future.

Some doors bring you to your past. Some doors lead you to your future. And some doors change everything. Sarah (Margot Robbie) and David (Colin Farrell) are single strangers who meet at a mutual friend’s wedding and soon, through a surprising twist of fate, find themselves on A Big Bold Beautiful Journey – a funny, fantastical, sweeping adventure together where they get to re-live important moments from their respective pasts, illuminating how they got to where they are in the present…and possibly getting a chance to alter their futures.

“I live in Los Angeles now, and I’ve been here for 20-odd years, but I was in Dublin for the first 20 years of my life and now, as soon as the plane touches down in Dublin, actually, even before that, when I start seeing on the screen at the back of the chair in front of me, that the airplane is getting close to an island called Ireland, I start getting kind of a nostalgia that’s really pleasing and a sense of placement that’s really familiar,” Farrell shared with me. “Going home is like walking through, so it’s a really powerful thing. I used to think of it as a sense of fracture, born one place, live another. I have people that I love, family members in LA, but I have family members at home in Dublin, never full, always missing someone. And now, I just see it as one kind of collective experience, but also, the differentiation is really an additive to my life, because it means when I go home to Ireland, it’s like walking through the doors. My past is everywhere, and there’s enough space between my past and what at one stage was perceived of my future, which is now my present, which is my life in LA. It’s an amazing thing to go home. I’m given so many constant gifts of memory without even having to kind of initiate or activate them myself.”

“I really try to remember to write things down, especially when I travel. I try and keep a travel journal every time I go somewhere. I just got back from a pretty amazing camping trip, and already I’m like, ‘I gotta write things down before I forget.’ I read things, things that you think you’re going to remember, like I would never possibly forget that thing that happened, and then, 15 years later, I read it, I’m like, ‘Oh my God, I completely forgot about that, and I’m so happy I wrote it all down.’ And then likewise, when we do a movie — well, movies in themselves are like this time capsule that we’re very lucky we can go back and watch something you did, and remember what it was like making that movie, and I’m so happy that this exists, and I’ll have that, but I also keep my scripts from every film, and I go back sometimes and look at the notes on the edges,” Robbie expressed. “In this script in particular, I’ve gone through and put pictures all through the script of the scenes that we shot, behind the scenes, or whatever, so it’s a little museum. It’s a little weird scrapbook, and I’ve written down a few things because Colin, as you’ve already just seen, is incredibly poetic, and I would even jot down little things he would say, and I’ve got it in my script and I know I’m going to be really happy one day when I look back and go, ‘Oh, wow, that was amazing.'”

Watch my full interview below: