Private Project

The Inventors Best Kept Secret

‘The Inventors Best Kept Secret’ is a film about small and big children problems in which it’s never quite clear what is fantasy and what is real.

This story is about the friendship between Kiki and Finn. Kiki is an 11-year-old girl with a big fantasy. As she does Bob a Job, she collects extra-ordinary people in her ‘Secrets Book’. Young inventor Finn is desperately in need for a good Invention, as so far all of his failed.
When Kiki becomes friends with Finn, she invites him into her fantasy world. As they do Bob a Job together, Finn collects technical devices as Kiki tells existing stories about people in the neighborhood. When they are on track of a real criminal, Kiki is no longer allowed to do Bob a Job after school. Finn experiences inventing is no fun without a friend to make it for.

  • Chantal de Jong
    Bronze medaille for 2020 New York Festivals World's Best TV & Film and nominated at Cinekid, The Netherlands
  • Hugo Vrijdag and Chantal de Jong
    Bronze medaille for 2020 New York Festivals World's Best TV & Film and nominated at Cinekid, The Netherlands
  • Monique van Dalen
  • Jago Hensema
    Key Cast
  • Juliette Heijne
    Key Cast
  • Juul Vrijdag
    Key Cast
    Divers award winning films
  • Mike Weerts
    Key Cast
    Divers award winning films
  • Dirk van der Pol
    Key Cast
    Divers award winning films
  • Project Title (Original Language):
    De Uitvinders en het Grote Mensen Mysterie
  • Project Type:
    Feature, Short
  • Runtime:
    29 minutes
  • Completion Date:
    October 25, 2019
  • Production Budget:
    25,000 EUR
  • Country of Origin:
  • Country of Filming:
  • Shooting Format:
  • Aspect Ratio:
  • Film Color:
  • First-time Filmmaker:
  • Student Project:
  • Cinekid
    September 17, 2020
Director Biography - Chantal de Jong

One day I watched a Dutch children's drama series; Q and Q. I think I was 6 years old. An exciting story revealed, on TV and in my mind. Every week I was ready, on a pillow, with my nose almost against the TV. Breathless. After the next blood-curdling episode, the adventure continued, in our neighborhood, with friends.

A seed was planned. Just like the lead actor in the series, I wanted to become a photographer or make films myself.


After a graphic study I finished the film academy at the University of Cultural Education.

After a few years of directing Corporate films, I started making Human Interest, educational and children's films. In The Netherlands, for school TV and various foundations, among others. Together with Hugo Vrijdag - Artist, I also started making my own youth films that later landed in The Discover Factory

As a filmmaker I get in a flow of creating. It feels great to take the childeren on an adventure.

Chantal de Jong
The Wan 2
5502 HS Veldhoven

Telephone: +316 502 27 462
Email address:

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Director Statement

Making Childrenfilms is creating the future