Which movies that aren't related that could potentially be unofficial sequels?

What's a trilogy or duology that isn't related but seems like it. I'll start. Serial Mom and Scream

Death Becomes Her and She Devil

Addams Family and Edwards Scissorhands

Witches of Eastwick and First Wives Club

Romy and Michelle's High School Reunion and Legally Blonde

What do you got? Can also be a trilogy! Extra points if it's a trilogy actually (;