Here are my favorite movies in this genre for each letter of the alphabet:

A – The Adventures of Prince Achmed (1926) (the first feature-length animated film)

B – The Birth of a Flower (1910) (the first use of time-lapse cinematography)

C – The Cabinet of Dr. Caligari (1920)

D – Dr. Mabuse the Gambler (1922)

E – Earth (1930)

F – Faust (1926)

G – The Gold Rush (1925)

H – The Hunchback of Notre Dame (1923)

I – It (1927)

J – The Joyless Street (1925)

K – The Kid (1921)

L – The Lodger: A Story of the London Fog (1927)

M – Metropolis (1927)

N – Nosferatu (1922)

O – The Oyster Princess (1919)

P – The Passion of Joan of Arc (1928)

Q –

R – Robin Hood (1922)

S – Safety Last! (1923)

T – A Trip to the Moon (1902)

U – Underworld (1927)

V –

W – The Wind (1928)

X –

Y –

Z –