Production
After completing Chicken Run in 2000, Jeffrey Katzenberg, the then-CEO of DreamWorks Animation and one of the film's executive producers, proposed to Aardman Animations the idea of making a sequel. However, Aardman declined as they felt unready to make a sequel as well as its employees feeling exhausted after completing the original film and instead moved on to different projects. Since then, ideas and talks of a sequel floated around for years until numerous crew members of the first film agreed to continue the story.
A sequel to Chicken Run was reported in April 2018 with Aardman Animations, StudioCanal and Pathé set to produce. DreamWorks had no involvement due to ending their partnership with Aardman after the box-office underperformance of Flushed Away in 2006. Sam Fell directed, with Paul Kewley producing. Fell was approached by the film's original co-director Peter Lord in 2016 at a party and convinced him to return to Aardman to direct the sequel. The original Chicken Run writers Karey Kirkpatrick and John O'Farrell returned to write for the sequel. Aardman co-founders Peter Lord and David Sproxton served as executive producers along with the original film's co-director Nick Park.
On 16 October 2019, the film officially began pre-production. Because very few props and models from the original film survived after being destroyed in a warehouse fire in 2005, Fell and his team resorted to using reference photos from the original film's making of book. Aardman said that Mel Gibson was not asked to return as Rocky. In June 2020, Fell released more details about the sequel, which would follow from the ending of the first film, where the chickens have settled into their new safe area. Molly, the chick of Ginger and Rocky, begins to outgrow the area, just as word of a new threat to the chickens arrives. In July 2020, Julia Sawalha, the voice of Ginger in the first film, revealed Aardman's intention to recast her role, saying her voice now sounded too old, and commented "I have officially been plucked, stuffed & roasted". The decision was met with criticism, with some finding the decision ageist.
Principal photography commenced in early 2021. In January 2022, Zachary Levi, Thandiwe Newton, David Bradley, Romesh Ranganathan and Daniel Mays replaced Gibson, Sawalha, Benjamin Whitrow, Timothy Spall and Phil Daniels as the voices of Rocky, Ginger, Fowler, Nick and Fetcher, while Jane Horrocks, Imelda Staunton and Lynn Ferguson reprised their roles as Babs, Bunty and Mac from the first film, with the film's title revealed as Chicken Run: Dawn of the Nugget. Bella Ramsey, Nick Mohammed and Josie Sedgwick-Davies voiced three new characters, Molly, Dr. Fry and Frizzle, respectively. In September 2023, it was announced that Miranda Richardson would reprise her role as the voice of Mrs. Tweedy and that Peter Serafinowicz also joined the cast as Reginald Smith, a "slightly bemused businessman".
Due to the COVID-19 pandemic, the clay models were put in quarantine for 10 days after the animators had finished. The clay models were put in a tent with ultraviolet lights.