Rainer's Review of Hotaru no haka (Grave of the Fireflies)
Grave of the Fireflies is the worst children's movie ever... but HELL YEAH what a powerful anti-war film it is.
Miyazaki's protege Takahata is the director of this film and GotF has the same amazing animation like his master's films but what makes it truly great and memorable is the plot: two orphans struggling to survive in WWII Japan. Abandoned by their aunt they get sucked deeper and deeper into a world of hunger and sickness.
It's such a sad film (not The Lion King sad but your granny's funeral sad) but also has heart-warming moments of brotherly love and a moving opening/ending which is just brilliant - sad but brilliant.
Don't show it your kids but watch it - not for nothing that Roger Ebert praised it as one of the most powerful anti-war films ever - he's absolutely right.