A.A.
I don't think, based on what you have said, that it is possible to guess if this is just a kid excited about his favorites toons, or a kid who is in need of greater intervention. You could perhaps try again and talk about all the things you're noticing, and what disruptive means in this case, and more people would be able to guess.
In any case, if you feel like he's developing mal-adjustments and/or there is a family history of ADHD or sensory issues or Autism Spectrum Disorders, it might be worth having him evaluated just to either calm your worries or get him assistance.
All kids do some of this in my experience. But like with many things, how much and what other signs of non-adjustment will tell you a great deal more about whether it's normal or not. There isn't a symptom of ADHD, for example, that a normal person doesn't have at least once in a while (usually when tired). It's the magnitude, frequency and disruption of their life that are the measure of whether it is a disorder or not. Whether they are having to fight it constantly and losing a lot becomes the basis to diagnose them.