Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
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Question: During the course of the Avengers, you see Mr Banner talk about his alter ego as just another entity inside of himself. Afraid, reluctant and very much un-willing to let him out, even if it means his escape from being captured by S.H.I.E.L.D. Citing Hulk's violence, lack of self-control, and raw power that would come of unleashing such a creature. However, during the argument on the plane as well as for the final battle, Banner is willing, and eventually does let the beast lose, seemingly without knowledge as to whether or not he can control him properly. Why does Banner choose to release the Hulk and where does he get the confidence he needs to be sure that he can point the indestructible beast towards the enemy, and not towards the Avengers?

Answer: Why does Banner finally allow the Hulk to come out?

Question: So was Jon Snow brought back to life in Game of Thrones to kill Daenerys? To me it makes sense, I'm not sure if I missed something along the way. It also backs the point that Daenerys would do no good for the world as the queen of Westeros.

Answer: Is this the purpose of bringing back Jon?

Question: In the first Matrix movie Agent Smith and Neo survived the green explosion from inside the agent. But in the third movie Neo and Smith both died as a result of the same attack in the first movie. How did this happen?

Answer:
If Neo survived in the first movie, how come he didn't in the third movie?