Cillian Murphy & Margot Robbie | Actors on Actors

Margot Robbie, also a producer on 'Barbie,' discusses her initial confidence in the film's success, attributing it largely to Greta Gerwig's involvement. She explains how Gerwig was her first and only choice to direct, despite not knowing the full extent of the film's cultural impact until later in production. Mattel's surprisingly open attitude towards the script, which included them as a 'character,' is also discussed.

Cillian Murphy talks about Christopher Nolan's consistent summer release strategy for 'Oppenheimer.' Both actors recall the 'Barbenheimer' phenomenon, where both films were released on the same day. Margot reveals a humorous exchange with an 'Oppenheimer' producer about moving release dates. They reflect on how this dual release demonstrated the audience's diverse tastes and enthusiasm for cinema, an organic movement not choreographed by studios.

Margot Robbie discusses her dual role as both producer and star of 'Barbie,' emphasizing that she wouldn't have played the role if Greta Gerwig didn't think she was the best fit. Cillian Murphy reflects on his six collaborations with Christopher Nolan, highlighting how their working relationship has deepened over 20 years. He notes Nolan's commitment to large-format film and IMAX, starting with 'Dark Knight' and evolving for 'Oppenheimer.'

Cillian Murphy praises Christopher Nolan's dedication to his work, noting that Nolan's consistent attire (wearing a similar suit each day) minimizes decision-making, a practice Greta Gerwig also adopted with boiler suits. Margot highlights the joyful and collaborative atmosphere on the 'Barbie' set, which encouraged cast and crew to come in even on non-working days. She emphasizes that the director's mood sets the tone for the entire production.

Cillian Murphy shares his extensive preparation process for 'Oppenheimer,' including reading and working with a dialect coach to master Oppenheimer's specific voice and mannerisms. Margot discusses the unusual challenge of preparing for 'Barbie,' as her usual methods (animal work, childhood memories) didn't apply to a character with no past. She found a breakthrough with Greta's suggestion to consider a podcast episode about a woman who can't introspect, providing a key to Barbie's naive perspective.

Margot explains the intentional evolution of Barbie's character from a doll to a human, reflected through subtle changes in her wigs, costumes, and overall certainty. She shares a personal connection, revealing she played Barbie partly based on her pure-hearted mother. Cillian asks about her mother's reaction to the film, especially a poignant line. Margot also highlights the extensive practical set builds for 'Barbie's Barbieland, emphasizing the tactile and handmade quality.

Both actors agree on the importance of practical effects, with Margot referencing Chris Nolan's similar preference for in-camera work. Cillian details how 'Oppenheimer' utilized real locations, including Oppenheimer's actual house and office, to create an authentic and palpable atmosphere. The conversation then shifts to Cillian's role as Tommy Shelby in 'Peaky Blinders,' discussing the show's enduring popularity and the possibility of a film adaptation.

Margot and Cillian discuss the possibility of sequels for their respective projects. While Cillian remains open to a 'Peaky Blinders' film under the right circumstances, Margot expresses mixed feelings about a 'Barbie 2,' proud of the original film's standalone success but eager to work with the team again if a compelling script emerges. They close by sharing their experiences with fans shouting iconic lines from their roles, including 'Hi Barbie' and 'Tommy f***in' Shelby.'