Please recommend me other movies with young girl (<15yo) as main character (and NOT kids movies) other than these:

Heavenly Creatures (these are older)

Lawn Dogs

Pan's Labyrinth

Thirteen (not exactly, only 1 storyline)

Tideland

mentioned by other users:

Whale Rider

Little Miss Sunshine

Rabbit-proof Fence

Mathilda

The Journey Of Natty Gann

Ayneh

Buddha Collapsed Out Of Shame

Electric Shadows (2004)

Cave Of The Yellow Dog

Winter's Bone

Hard candy

MirrorMask

Palindromes (main character is a 13 year old girl but is played by multiple actors of various ages, races and genders)

The Unloved

Trust (14 year old Liana Liberato)

Flickan (Swedish)

Bastard Out of Carolina

Tomboy (French)

Eva (Spanish)

Don't Be Afraid of the Dark

Firestarter

Ulvesommer (Norwegian)

Rain (New Zealand)

Angela (1995)

Pretty Baby

The Fox & the Child (French)

Phoebe in Wonderland

Anne Frank: The Whole Story

Water Lilies (French)

Elina: As If I Wasn't There (Swedish)

The Quiet Room

Hick

The Poker House (17 year old Jennifer Lawrence plays a 14 year old)

Twelve and Holding (three 12 year olds, 2 boys and a girl)

The Man in the Moon

Towelhead (18 year old girl plays a 13 year old)