Everyone is always interrupting and I think they start comming up with reasons to be annoyed when I everntually ask them to please let my child finish his sentence, or when I say I need to talk to him for a bit.
Let me see...
If your kid is sitting all the way through the story, then he is mature. If not, then he is immature.
Going into more detail: If your kid, who has sat through the story, can tell you one thing about the it, then he is mature. But if he wants to talk about all aspects of it, and understand every nuance, then he is immature.
LOL
I can tell you now that this perception of your child will not go away. A high energy, high mental-function kid will be very challenging to most adults in child education. They will interpret his intensity for immaturity. You will have developed a happy medium for dealing with it, but to them, in its raw form, its very disruptive.