Given a paragraph about movies, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.

CONTEXT: I don't have official source or script to draw from. However, my read on that scene is that they were waiting for the humans. The whole nest seems to be in a sort of button-up-and-fortify mode. The most the Vikings sniff of a dragon is the tail that gets whisked out of sight. This is more than likely intentional - note that the eerie sound that continues while the Vikings land and fortify continues right up until they punch the hole. It's a very similar sound to the sound the other Alpha dragons make in the second movie, while exerting dominance or control. The Alpha is holding it's nest on tight guard, possibly to pounce once it feels right. That all seems to go out the window when Stoick signals a fireball launched in. Whether that was just an agressive surprise, or read as some kind of direct challenge, I couldn't say for sure. The dragons in the tunnel though, didn't move until that moment, and it mostly seems to be an action of I'm-getting-the-heck-out-of-the-way as that Alpha decides to muscle out and deal with this personally.  <sep>  Q: Why didn't the dragons leave their lair earlier? A: The Alpha is holding it's nest on tight guard  Q: What is the Alpha and how is it different to the other dragons? A: exerting dominance or control 
Is it true that the queen kept dragons as prisoners?

CONTEXT: They usually got all their reading and practice material from the supply store (spell books, candles etc.). So its safe to assume they are not natural witches but acquired powers through learning and studying witchcraft. I think it had more to do with the reading and practice of witchcraft and firm belief that it works.  <sep>  Q: Where do the powers come from? A: acquired powers through learning and studying witchcraft 
What kind of powers do they acquire?

CONTEXT: The 2007 behind the scenes special 77 Secrets of The Fairly Odd Parents Revealed! explicitly states that Tiberius is a reference to Kirk. There are a number of Star Trek references in the show too. His tree house turned into an Enterprise bridge look-alike in the same video which is from the episode "Boy Toy".  <sep>  Q: Is Timmy Turner's middle name a reference to Star Trek? A: Tiberius is a reference to Kirk  Q: Why did the writer make that connection? A: There are a number of Star Trek references in the show 

What are some other ones?