Where to watch
Bassie & Adriaan: The Secret of the Key was released on October 8, 1978 but we couldn't find it on any streaming service yet. Rights can change — try again later.
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Bassie & Adriaan: The Secret of the Key — streaming FAQ
Which OTT platform streams Bassie & Adriaan: The Secret of the Key?
Bassie & Adriaan: The Secret of the Key isn't streaming anywhere in United States yet.
Is Bassie & Adriaan: The Secret of the Key on Netflix?
No, Bassie & Adriaan: The Secret of the Key is not on Netflix in United States as of September 2026.
Is Bassie & Adriaan: The Secret of the Key on Amazon Prime Video?
No, Bassie & Adriaan: The Secret of the Key isn't on Amazon Prime Video in United States right now.
Where can I watch Bassie & Adriaan: The Secret of the Key for free?
Bassie & Adriaan: The Secret of the Key isn't streaming in United States yet, so there's no way to watch it free at the moment.
What is the OTT release date for Bassie & Adriaan: The Secret of the Key?
Bassie & Adriaan: The Secret of the Key hasn't started streaming in United States yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around November 26, 1978. This is a prediction, not a confirmed date.
Is there a sequel to Bassie & Adriaan: The Secret of the Key?
Yes — Bassie & Adriaan: The Secret of the Key is followed by Bassie & Adriaan: The Diamond (1979) in the Bassie & Adriaan Collectie.
Is there a prequel to Bassie & Adriaan: The Secret of the Key?
Yes — Bassie & Adriaan: The Poltergeist (1978) comes before Bassie & Adriaan: The Secret of the Key in the Bassie & Adriaan Collectie.
Is Bassie & Adriaan: The Secret of the Key part of a trilogy?
No — Bassie & Adriaan: The Secret of the Key is part of the Bassie & Adriaan Collectie, which has 26 films.
How many movies are in the Bassie & Adriaan Collectie?
There are 26 films in the Bassie & Adriaan Collectie: Bassie & Adriaan: The Poltergeist (1978), Bassie & Adriaan: The Secret of the Key (1978), Bassie & Adriaan: The Diamond (1979), Bassie & Adriaan: The Crying Professor (1982), Bassie & Adriaan: Leren en Lachen Deel 1 (1986), Bassie & Adriaan: Leren en Lachen Deel 2 (1986), Bassie & Adriaan: Leren en Lachen Deel 3 (1986), Bassie & Adriaan: Het geheim van de schatkaart (1987), Bassie & Adriaan - Het Geheim Van De Schatkaart Deel 1 (1987), Bassie & Adriaan - Het Geheim van De Schatkaart Deel 2 (1987), Bassie & Adriaan: The Lost Crown (1988), Bassie & Adriaan: De Verzonken Stad (1989), Bassie & Adriaan: De geheimzinnige opdracht (1992), Bassie & Adriaan - Op Reis Door Amerika Deel 1 (1994), Bassie & Adriaan - Op Reis Door Amerika Deel 2 (1994), Bassie & Adriaan - Op Reis Door Amerika Deel 3 (1994), Bassie & Adriaan - Op Reis Door Amerika Deel 4 (1994), Bassie & Adriaan - Op Reis Door Amerika Deel 5 (1994), Bassie & Adriaan: De reis vol verrassingen (1994), Bassie & Adriaan: Liedjes uit Grootmoederstijd (1995), Bassie & Adriaan: Op Reis Door Europa Deel 1 (2010), Bassie & Adriaan: Op Reis Door Europa Deel 3 (2010), Bassie & Adriaan: Op Reis Door Europa Deel 2 (2010), Bassie & Adriaan: Op Reis Door Europa Deel 4 (2010), Bassie & Adriaan: Op Reis Door Europa Deel 5 (2010) and Bassie & Adriaan: Op Reis Door Europa Deel 6 (2010).
