What SF-movie is it?

120 views#1 Moviesdark sf Soldier somber time travel

I’m looking for the name of a time travel movie, which I have only very faint memories of. Anyway, its atmosphere is rather somber and I seem to remember a scene, when a soldier of WW I or II is sitting in a downtown cafĂ© at night looking up at an office building and waiting for something to happen or someone to appear.
I would very much like to watch this film again, although I’m aware that I remember just a few morsels.

Carolus Parvus Asked question Apr 5, 2022