Campbell auditioned for the 2023 British comedy-drama film Scrapper after one of her mother's friends directed her towards a Facebook casting call for “a bit of a mess about”.[2] Campbell was cast in the film after impressing writer/director Charlotte Regan by acting out a well-known scene from soap-opera EastEnders in which the character Kat Slater (Jessie Wallace) tells Zoe Slater (Michelle Ryan), "I'm your mother!", with Campbell playing both roles during the audition.[3] She also discussed with Regan her love of the department store Home Bargains. During filming she was twelve years-old.[4] For her role in the film as Georgie, Campbell received critical praise,[5][6][7][8] with Jonathan Romney in The Financial Times describing her as an "astonishing discovery" who "excels".[9] Claire Shaffer in The New York Times said she played the role "wonderfully",[10] and Deborah Ross in The Spectator used "terrific, fresh, naturalistic, winning".[11] Campbell appeared opposite Harris Dickinson, who played her estranged father, Jason, and the pair’s scenes together were highly improvised.[12] They were nominated for the Best Joint Lead Performance Award at the 2023 British Independent Film Awards, and she was individually nominated for Breakthrough Performance.[13][14] She was also nominated for the Young British/Irish Performer of the Year award at the London Film Critics Circle Awards 2023[15]
