I've been kinda shopping around various Japanese interviews and such, seeing which ones are worth paying to have translated. Some have been duds, but this one is pretty interesting. It's a long blog post written by Takeshi Shudo, who was the chief writer of the anime as well as the first 3 movies. I'll soon have the full interview translated, but I wanted to give y'all a glimpse at what's inside.
Shudo talks about his anxiety of the Pokemon franchise losing its popularity in the long wait between generations 1 and 2. He also discusses Lugia -- also known as Pokemon X at the time -- which he created himself specifically for the second movie, and was surprised to see that it ended up being used *outside the movie.*
I should note, it's very strange for an anime writer to be creating Pokemon, especially a Legendary like Lugia. Here's a snippet of what the translator's given me so far:
"With a majority vote from the film distribution team and Game Freak counted at the big meeting, it was decided that the name of the Pokémon in the second movie would be Lugia as I had suggested earlier. Lugia, also known as X, is a Pokémon that I created myself specifically for use within this movie, and the fact that it was used in episodes of the anime released after the movie's release and even games surprised me greatly."