You're really are something special. Okay, I'm going to make a special fucking Google trip for you since you don't seem to like to see reason.
http://bulbapedia.bulbagarden.net/wiki/Lucario_(Pokémon)
Read this article. Everywhere is references Gen IV and beyond, and nothing of the earlier Gens.
http://bulbapedia.bulbagarden.net/wiki/M08Premiering in Japan on July 16, 2005, it introduced four new Generation IV Pokémon, Lucario, Bonsly, Mime Jr. and Weavile.
Just because they released an anime movie during a certain Gen (because in case you haven't noticed, the anime and games are
completely seperate entities) doesn't mean the new Pokemon in it belong to Gen III and was introduced in it. A movie not made by Gamefreak doesn't fucking count. Because if what you said was the case, Ho-Oh appearing in the first episode of the anime would make him a Gen I pokemon correct? No, his national dex number is #250. Not one of the original 151.
http://bulbapedia.bulbagarden.net/wiki/List_of_in-game_event_Pokémon_in_Generation_III
I also wasn't aware that a anime movie was a "special event" in Gen III. You keep talking about this special event where you could get Lucario in Gen III and I can't seem to find it anywhere. Mind giving me a source for your claim? Because according to this link, Lucario was not a event pokemon in Gen III.
Mind giving this a rest now and moving on? You lost, brah.