Avengers: Infinity War - 23 New Secrets Revealed
22. Thanos Beat Hulk On His Own
Despite the fact that Thanos already had the Power Stone by the time he comes face-to-face with Hulk on Thor's ship at the start of the first act, it turns out that the Titan didn't need the assistance.
In the comics, the Power Stone can boost the powers of the wielder, which would presumably have made Thanos even more strong, but according to the commentary, Thanos is already stronger than Hulk and beats him without any "cheating." Goes to show how much of a threat he was AND how he's able to wield the Gauntlet without dying.
21. Valkyrie Did Survive
As has already been mentioned previously, the commentary confirms that Valkirye survived Thanos' attack on Thor's ship along with several Asgardians. How she managed to get away is unclear.
Sadly, Christopher Markus wont' be drawn on whether another Taika Waititi favourite makes it out alive. He says only "pray for Korg."