Die Straße wurde plötzlich zu einer privaten Straße, ohne dass ich wusste, wo die Szene geschossen wurde und was genau.

A nice place, but the access to the forest is forbidden. The filming took place at the entry of the forest. That way you can see the location without entering the forest. If you're a real fan, it's worth it, otherwise not.

The way to go there is on private property. You must not go there.