Movies where female lead dies or gets hurt physically or falls sick!

 Nupur:

the female lead changes the life of the male lead but dies tragically, after saving his life.  (You can also recommend dramas that include this)

I haven't watched many Asian movies, so I only have dramas to recommend.

• Moon Lovers: Scarlet Heart Ryeo
• Gu Family Book
• A Korean Odyssey
• Prince of Lan Ling

Stairway to heaven (drama, if you liked Autumn Tale, prepare yourself for a good classic tearjerker here)

1 litre of tears  (movie and drama)

April bride (movie)

A wedding invitation (movie, watched it long ago and can't remember if she had dementia or not, sorry)

Wedding dress (movie)

The snow queen (2006 drama)

Had to remove 2 that had Alzheimer's and another one where he died as well.

My favorite troupe

Movies only.

Let me eat your pancreas

Heavenly Forest

A millionaire's first love

Crying Out Love in the Center of the World

Sad Movie (not male lead but her kid) freaking sad movie just like the title)

Crazy First Love  

Dramas only add, that havent mentioned above

Fantastic

Marriage contract

Crying Out Love in the Center of the World (drama version)

these are all i can think of, i'll add if i remember something

 The_Autumn_Tale:

Pls let me know the last one where the guy dis as well! I am fine with both dying and the girl alone dying! I just don't want the guy to die "alone".

I remembered 2 more -

A love to kill (Korean version)

What happened in Bali (all 3 leads)

I'm sorry, I love you (Korean version) 

edit - remembered another oldie, saw bits and pieces from it Kamisama mou sukoshi dake (1998)