It features an ensemble cast, including Louis Koo, Gigi Leung, Louise Wong, Chrissie Chau, Tony Wu, German Cheung, and Peter Chan.

The story revolves around a businesswoman (Wong) who challenges a Muay Thai champion (Chau) to a boxing match, navigating life through her training with her coach (Koo).

Following the critical success of the Chinese New Year film Rob N Roll, Albert Mak began developing his next feature with Louis Koo and screenwriter Link Ling.

Principal photography took place in Hong Kong and Macau from October to November, and post-production wrapped up in December, with the entire development process spanning three to four months.

After their fallout, Bridget finds a parcel left behind by Elsa, containing a framed photograph of her ex-boyfriend, Daniel, and Surewin, a Macau boxing champion and former apprentice of Carrie's husband, Bruce.

After reflecting on her situation, Elsa talks to Stallone, who shares his own struggles with a long losing streak, inspiring her to persist in boxing.

At last, Arnold and Surewin help run Bruce's gym, with Elsa joining in efforts to expand the business, as they discuss future plans over dinner.

After the critical success of Rob N Roll (2024), director Albert Mak [zh] and screenwriter Link Ling began developing the screenplay for their next feature film, with Louis Koo involved from the early stages.

[11] Later that month, Koo announced that this project would be Albert Mak's Chinese New Year film, though the story is entirely unrelated to the Kowloon Walled City.

[9] Lead actors from Walled In, including Koo, Raymond Lam, Philip Ng, Tony Wu, and German Cheung [zh], returned to star, while Louise Wong, Gigi Leung, Chrissie Chau, and Peter Chan joined the cast.

[12] In late October, the film's title was revealed to be Hit N Fun alongside the commencement of production,[13] and it serves as a spiritual successor to Mak's previous feature Rob N Roll.

[22] In mid-November, Chau and Gigi Leung filmed a scene at the Ancestral Temple of Fok Tak in Horta da Mitra [zh], Macau Peninsula.

[22] Additional locations in Macau included the restaurants Albergue 1601 and Cheung Lam Kei Cafe in Coloane, as well as the Studio City and its water park.

[24] The shoot continued in Sheung Wan, Hong Kong in late November, where Chau, Wong, and Peter Chan were spotted on set.

[27] The film features a theme song "Pick Me Up", composed, arranged, and written by Johnny Choi, and performed by Tony Wu.

[46] Edmund Lee of the South China Morning Post gave Hit N Fun 3.5/5 stars, describing it as an "unusually warm-hearted boxing drama" that blends "slapstick humor" with a "largely somber tale", prompting characters to reflect on their life goals, reminiscent of Johnnie To's Throw Down (2004), and functioning as "a parable of Hong Kong" amid contemporary social and economic upheaval.

[1] Sek Kei gave the film 3/5 stars in his review for Ming Pao, noting that although the plot appears "hastily assembled", the engaging direction and strong performances from the ensemble cast make it enjoyable.