In Disney’s movie Coco (2017), Miguel is cursed for stealing from the dead, which is the reason he ends up in the land of the dead, as it is explained by a clerk:
CLERK
Well, you're cursed.
The family gasps.
MIGUEL
What?!
The clerk searches through a huge stack of papers.
CLERK
Día de los Muertos is a night to
GIVE to the dead. You STOLE from the dead.
MIGUEL
But I wasn't stealing the guitar!
And he proceeds to explain how breaking the curse would be easy because it is a family matter:
Mamá Imelda turns to the clerk, fire in her eyes.
MAMÁ IMELDA
How do we send him back?!
CLERK
Well, since it's a family matter...
(flipping pages)
The way to undo a family curse is
to get your family's blessing.
MIGUEL
That's it?
CLERK
Get your family's blessing, and
everything SHOULD go back to
normal. But you gotta do it by
sunrise!
...but it isn’t truly a family matter: Miguel didn’t steal from his own family, he stole from Ernesto De la Cruz who isn’t really related to him. So how is it possible for Mamá Imelda to send him back? How is the curse a family thing?