Spoiler Thread: Avengers Infinity War

But what if somehow they steal the Gauntlet? The movie, to me, made it seem like in order to get the Soul Stone while on Vormir required a sacrifice. After killing Gamora he woke up with it. But once someone has it do you have to sacrifice someone just to grab it?

The soul stone sequence is entirely up for interpretation at this point. I took it as Thanos being reduced to the only thing that ever mattered for him, his love for Gamora.

I think A4 begins on Titan with a heavy conversation between Thanos and Iron Man. Isn't he still stuck there with Rocket? I've only seen it once. I've been itching for a second viewing but haven't had the time.