Geometria (1987)

https://www.imdb.com/title/tt0369452/

https://en.wikipedia.org/wiki/Geometria_(film)

Director: Guillermo del Toro
Stars: Fernando Garcia Marin, Guadalupe Del Toro, Napo, Rodrigo Mora

A boy is tired of failing geometry, so he summons a demon.

Short
Mexico, Italian dubbed - every voice in the Italian dub is done by Guillermo himself.
English subs (embed)


1080p BDRip MKV 331 Mb 0:06:27
AVC, 1440x1080 (4:3), 23.976 fps, 6 561 Kbps (0.176 bit/pixel)
AC-3, 48.0 KHz, 6 ch, 640 Kbps, CBR

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