Complex sentence: Sharkboy and Lavagirl save some children from an out-of-control roller coaster; then, with Max, confront Mr. Electric, who quickly drops them in a part of Planet Drool called the Dream Graveyard where some of Max's dreams have been dumped.
Split into simpler sentences: Sharkboy and Lavagirl save some children from an out-of-control roller coaster. Then with Max, they confront Mr. Electric who quickly drops them in a part of Planet Drool called the Dream Graveyard where some of Max's dreams have been dumped.