You have a gift for understatement. I was weeping for hours afterwards.

It was made together with My Neighbour Totoro as a double feature. Only Totoro could rescue me!

I had my spouse, who crys often at movies, watch it with me. I gave them fair waning that it was very sad and apparently very good. She agreed, and was also "I'm never watching that again". She enjoyed it. Can confirm, brutal and great. But like other amazing sad war movies like Schindler's List, I'm not going to watch it for fun.

Actually that's a good way to think of it, compress SL into a anime length movie and you have the emotional hit of Grave.

Totoro is one of best "feel good movies" I've ever watched?

Devastatingly sad movie.

But not for a second regrettable.

As sibling comment notes, have My Neighbor Totoro ready to go afterwards to put you back together.

I'm not sure if you are being intentional here, but those two movies were presented as a double feature when they were first released in theater.

Both. I am aware of the double feature release AND I think it is a good idea. :-)