A bit of a long shot, but … Johnny Mnemonic?
Is there a scene where the hero rants about how he wants room service?
I’m confused. How can you “really love” a movie, yet remember only three very vague things about it? “Movies I loved” and “Movies that proved utterly forgettable” are two mutually-exclusive categories, aren’t they?
Yeah, put me down in the category of “not understanding how the OP can’t remember anymore details than he’s already presented yet claims to have 'loved the movie”.
Srsly? A guy in a big room or building in the future and there’s “military intrigue” (which is pretty much synonymous with “plot of some kind”) is all you can remember?
Dark City?
13th Floor?
How about Blade Runner?