Anime has been quite popular these days, so let's see times when anime had been referenced in non-Japanese or non-Asian movies or TV shows.
One condition: No shows like the Simpsons, South Park, Robot Chicken--basically, the adult or parody cartoons. Those are too easy.
I'll start with a well-known franchise: Pokémon. A couple references to Pokemon include this scene from Paper Towns
House mentioning Arceus
And of course that Godzilla scene in Austin Powers Goldmember
As for anime that isn't Pokemon, there's that Evangelion nod from a movie called One Hour Photo
And the music video for Michael and Janet Jackson's "Scream" features clips from Zillion, Akira, and Vampire Hunter D