In late 2015, the Thai film industry faced a major shock. GMM Tai Hub (GTH), the powerhouse studio behind the country’s highest-grossing films, suddenly dissolved. The three primary partners could not agree on the company’s future or a plan to take the company public. To outsiders, it looked like the end of an era.
Instead, it was a calculated reset.
Weeks later, on January 5, 2016, former GTH Co-CEO Jina Osothsilp launched a new entity: GDH 559. The numbers in the name were not random. The “5” marked the January 5 launch date. The “59” stood for the Buddhist Era year 2559. Most importantly, it represented the studio’s 59 original shareholders. This numerical code laid the foundation for a business model that would transform Thai cinema from a regional interest into a global force.
The Advertising Root
To understand how Osothsilp built Thailand’s premier film studio, you have to look at her early career. In 1991, alongside fellow alumni from Chulalongkorn University, she co-founded Hub Ho Hin Bangkok. The production house did not start with feature films. It focused on high-end television commercials.
The advertising industry requires strict discipline. Creators must grab an audience’s attention in seconds, deliver a clear emotional message, and package the final product with visual polish. When Osothsilp moved into the film industry by helping form GTH in 2003, she brought this branding expertise with her. She understood that a movie is a product. For that product to survive, it requires rigorous market research, sharp packaging, and a deep understanding of what the audience wants to feel.
The Gross Domestic Happiness Philosophy
When Osothsilp built GDH, she put a specific strategy directly into the company’s name: “Gross Domestic Happiness.”
In the traditional film business, leadership often prioritizes profit margins and box office projections. Osothsilp rejects this purely financial approach. Her philosophy operates on a simple mechanic: prioritize the emotional well-being of the creators and the audience, and commercial success will follow.
This is more than a feel-good slogan; it is an effective business strategy. Osothsilp argues that if writers and directors work in a supportive environment, they will produce higher quality content. If the content is excellent, audiences will connect with it and generate the returns investors expect. She treats happiness as a key performance indicator.
The Global Breakout
The financial results of the GDH model prove that it works. By focusing on universal human experiences, the studio has generated massive international returns.
For example, Bad Genius (2017) sounds like a modest local story about high school students cheating on exams. Under the guidance of Jina and her team, it became a high-stakes heist thriller that tapped into global anxieties about education. The film grossed over $42 million worldwide, becoming a major international success for Thai cinema.
Osothsilp’s studio repeated this success with How to Make Millions Before Grandma Dies (2024). By exploring the complexities of family and inheritance, the film resonated deeply across Asia. It shattered box office records and became the highest-grossing Asian film of all time in Indonesia. The movie generated nearly $60 million globally and is Thailand’s official entry for the 97th Academy Awards.
GDH has also successfully managed international partnerships. The Medium (2021), a horror film co-produced with South Korean filmmaker Na Hong-jin, won Best Film at a major international festival. By pairing local talent with foreign expertise, Osothsilp expanded her studio’s reach far beyond Thailand.
The “Professional Family” Model
The mechanics of this success come back to the “59” in the studio’s name. When Osothsilp founded GDH 559, she distributed shares among executives, directors, actors, and employees.
This ownership structure built what she calls a “professional family.” By giving creators a financial stake in the studio, she ensured they cared about the company’s long-term health. Jina acts as the leader of this operation, often describing herself as a “mother” or “grandmother” to her staff. She practices a “listen first” management style, bridging the gap between veteran filmmakers and a new generation of creators. Directors are given creative freedom, backed by the intense market research and branding muscle the studio provides.
The Future of Soft Power
Today, Osothsilp is recognized as one of the most influential leaders in Asia. Through joint ventures in South Korea, Indonesia, and Vietnam, she is actively rebranding Thai cinema. She has moved the industry past its old reputation for niche horror and low-budget comedies, establishing it as a sophisticated source of “soft power.”
She is also using her influence to fight for the industry’s future. She is pushing the Thai government to offer tax incentives for local productions to match the deals given to foreign film crews.
Jina Osothsilp proved that a company does not have to choose between a healthy workplace and a profitable product. By building a studio where creatives share ownership and universal human stories come first, she turned Gross Domestic Happiness into a successful global formula.
