Tourist Here Being Curious

Okay so, I have never read the books. I watched the movies years ago when they got released and I liked them. Now I just finished watching the series, which instead felt more like a kids show, like idk... it felt like watching Harry Potter, the first movie. Not bad but maybe I am too old to fully appreciate it. Anyways, I didn't hate it, in fact, I kinda liked it. Despite the "I had every important plot point spoiled because it's basically the exact same story from the movie", with some minor differences.

Now I've got a few questions to the dedicated fans:

1. What was more accurate to the books, the movies or the series?

2. Season 2 is going to cover the Sea of Monsters arc, I assume?

3. Was the guy calling Percy "Peter" making a joke about how his name sounds like Peter Jackson?