A remote fishing village in Iceland. Teenage boys Thor and Christian experience a turbulent summer as one tries to win the heart of a girl while the other discovers new feelings toward his best friend. When summer ends and the harsh nature of Iceland takes back its rights, it's time to leave the playground and face adulthood.
Unfortunately the movie Heartstone is not yet available on HBO Max.
| Directing | Guðmundur Arnar Guðmundsson | Director |
| Writing | Guðmundur Arnar Guðmundsson | Writer |
| Editing | Anne Østerud | Editor |
| Editing | Janus Billeskov Jansen | Editor |
| Sound | Kristian Eidnes Andersen | Original Music Composer |
| Camera | Sturla Brandth Grøvlen | Director of Photography |
| Art | Hulda Helgadóttir | Production Design |
| Production | Guðmundur Arnar Guðmundsson | Producer |
| Production | Lars Bjørn Hansen | Executive Producer |
| Production | Jesper Morthorst | Producer |
| Production | Sara Nassim | Line Producer |
| Production | Lars Bredo Rahbek | Executive Producer |
| Production | Eva Sigurðardóttir | Associate Producer |
| Production | Hilmar Sigurðsson | Consulting Producer |
| Production | Lise Orheim Stender | Producer |
| Production | Anton Máni Svansson | Producer |
