Development of the screenplay began in 2013 but was rejected three times by the First Feature Film Initiative before screenwriter Anastasia Tsang joined the project and rewrote the story.

Learning this, Lee rushes back to the set and engages in heated arguments with Wai, resulting in the early departure of the stunt crew.

Mesmerized by the momentum, Lee ignores the dangers and Wai's suggestion to halt filming, instead asking the cinematographers to focus on the injured pedestrians to capture their raw emotions.

Lee overhears Cherry expressing a desire for fireworks at her upcoming wedding, prompting him to request firecrackers from a friend in the props department.

Lee's suit is torn in the process, causing him to arrive late to Cherry's wedding, which angers her and leads her to ignore him all night.

As the crew finishes building the cardboard box bed and Long prepares to jump, Lee advises him to go downstairs and wear more safety pads.

At that moment, he informs the main crew that Long is ready, and performs the dangerous jump himself, landing beautifully against the backdrop of a large explosion.

[6] During this time, the brothers conceived the idea of producing a film that captures the rise and decline of Hong Kong action cinema,[8] beginning to develop a screenplay in 2013.

[7] With the help of action choreographer Benz Kong, they contacted Tung,[7] who, despite having quit acting to focus on behind-the-scenes work for decades, agreed to return to film, stating he was "moved" by the story.

[7] The Leung brothers were initially hesitant about casting Long, as there are limited young action stars today, and ultimately chose Terrance Lau for the role, believing he could convincingly portray the physique and skills of a stuntman.

[14] In March 2023, Lau, Tung, Ng, Cecilia Choi, Lam Yiu Sing, and Rachel Leung were announced as the main cast.

[28] Edmund Lee of South China Morning Post gave Stuntman 3.5/5 stars, describing it as a "passionate homage" to Hong Kong's golden age of action filmmaking in the 1980s and 90s, while highlighting Stephen Tung's compelling performance and acknowledging the film's critique of the unsafe practices of old-school filmmaking, as well as its exploration of sentimental themes such as passion, redemption, and familial reconnection.

[29] Thomas Kong of Esquire also emphasized the performances of veteran actor Stephen Tung and younger leads Terrance Lau and Philip Ng, praising their work as a heartfelt tribute to the struggles of Hong Kong action actors that showcases their passion and dedication while effectively highlighting the contrasting experiences of the characters.

[30] Leslie Felperin of The Guardian gave the film 2/5 stars, offering a critical review that suggests it appeals more to hardcore fans of Hong Kong cinema than to mainstream viewers, as it explores the identity crisis of the contemporary Hong Kong film industry through a nostalgic lens and "duly impressive" stunts, but ultimately comes across as "thuddingly sentimental" and featured conservative family values and underdeveloped characters.

[31] Amy Mullins of China Daily also viewed the film as effectively blending nostalgia for classic Hong Kong action cinema with a modern perspective, showcasing the evolving dynamics between old and new approaches to filmmaking through the strong performances of Stephen Tung and Philip Ng, though it could benefit from deeper character development.