Marwen Films
From the Audiovisual Identity Database, the motion graphics museum
(1983)
Logo: On a black background, after a few seconds, we fade onto a dark yellow background, containing a very thin ring with the letters "MW". Next to it are the words "MARWEN Films" above and "Presenta" under. It all fades out.
FX/SFX: Just the fading.
Music/Sounds: A triumphant fanfare which sounds likely similar to the Columbia Pictures logo.
Availability: Ultra rare. Only known to be seen on Alguien mató su inocencia.