I'm looking for a movie that I saw some 20 or so years ago.
There's a boy who wanders about the countryside and falls into a hole to find himself in a corridor. He looks around, explores things...not sure if anything special happens in the mean time. The boy was youngish...around 10, maybe younger. From what I remember, it was generally very dark, the corridor might have been covered with dry bush branches. There might have been old screens / machines / computers overgrown with vegetation, but I remember things to be dark, brown, black, ...rather than green.
The corridor is actually a part of a spaceship that's burried there and seems to be dead. Anyway towards the end the boy triggers something that makes the spaceship come alive and start to take off. Not sure if the boy gets out or stays.
I'm not sure, but the ship may have started to talk to the boy...by voice or text on a screen...but I feel like I might be making that up :-)
Now that I think of it that's how it might have been. The boy visiting regularly, somehow communicating with the thing. In the end the ship then decided to take off. Until that moment I think it wasn't really obvious that it was a ship at all. Just an old dusty underground "house".
That's as much as I remember.