I've got five minutes to type all of these down, so here ya go! And also, they aren't all actually shows/movies. Some are historical happenings that I thought would be cool.
Hetalia: Axis Powers
Powerpuff girls Doujinshi (the well-known one)
City of Ember
Titanic: with this, you would need to get clockwork to put Danny in this time, and have him do something to change the timeline
Twin Towers: similar to Titanic. Clockwork puts Danny back in time, and has him change something.
Hetalia: with this, you could make Danny a country called Ghost Zone, but that's just an idea. Use it if you want. You can make your own storyline though.