Throne rooms make for great set pieces in games. Just think of the Fellowship approaching Théoden's throne in Lord of the Rings. Or any scene involving the Iron Throne. Or any of the climactic battles listed here on TV Tropes.
If you have a Big Bad, or indeed a Big Good, make sure the PCs get to encounter them in their throne room.
Commentary by memnarch (who has not seen the movie)
Whoa, that's very red. Like, extremely so. Maybe the nicer color palette is just for the non-First Order parts of the film? This whole room feels like something taken from a music video. There's the back-up dancers as guards, the little sort of spot-light on the lead, a couple side platforms for extra bits in the show, and an extremely reflective floor for some reason. I'm not sure why the movie would have this kind of room, but I'll bet that it is or was part of the whole "First Order Megacorp" thing that Nute is running.
And uh, Snoke doesn't look nearly as cool in person I have to say. Rather disappointing in fact. He gets a couple points for the unique gold clothing, but otherwise he's a lot smaller and more shriveled up than I'd hoped he'd turn out to be when we'd finally see him. Sure, the room he's in is impressive enough, but that just makes things worse by showing how small Snoke is in comparison. And it looks like he can hardly lift his head up! I guess I'd mentally interpreted the previous holograms some as pixelation coming from enlarging the projection, and the looking down as part of the "I'm better and bigger than you" presentation thing he'd had going on. This feels like a reveal a lot of people would be disappointed with.
GM: Okay, pizza’s on the way. Are we ready?
GM: Administrator Snoke has summoned General Hux and Kylo Ren to an audience on the First Order flagship, Supremacy.
Kylo Ren: I arrive fashionably late.
Snoke: I knew you’d fail to bring Kylo Ren to me.
General Hux: He’s... He’ll be here any second.
Snoke: Allowing things to be overdue is one of the greatest failings imaginable!
Kylo Ren: I arrive and stride in.
Kylo Ren: What did I miss?
Snoke: Me berating General Hux.
Kylo Ren: Eh, I’ve seen it before.
General Hux: It wasn’t even my fault he’s late!
Snoke: Dismissed, young man.
General Hux: Some roleplaying this is.
Snoke: You’re playing the role of an incompetent lackey admirably.