Artie Mitchell & Jim Mitchell – Behind the Green Door (1972)

IMDb wrote:
A beautiful young woman is abducted and forcefully initiated into a live sex act on a private stage, participating in lesbianism, interracial sex and an orgy in front of a live audience.

Behind.The.Green.Door.1972.576p.BluRay.AAC2.0.x264-PLAINVIEW.mkv

General
Container:  	Matroska
Runtime: 	1 h 11 min
Size: 	1.86 GiB
Video
Codec: 	x264
Resolution: 	768x576 
Aspect ratio:  	4:3
Frame rate: 	23.976 fps
Bit rate: 	3 361 kb/s
BPP: 	0.317
Audio
#1:  	English 2.0ch AAC LC @ 154 kb/s
#2:  	English 2.0ch AAC LC @ 83.8 kb/s (Commentary with Marilyn Chambers biographer Jared Stearns)
#3:  	English 2.0ch AAC LC @ 89.4 kb/s (Commentary by actor George McDonald moderated by Ashley West of The Rialto Report - Part 1)
#4:  	English 2.0ch AAC LC @ 32.1 kb/s (Commentary by actor George McDonald moderated by Ashley West of The Rialto Report - Part 2)

https://nitro.download/view/9A3F52DEF1669AE/Behind.The.Green.Door.1972.576p.BluRay.AAC2.0.x264-PLAINVIEW.mkv

Language(s):English
Subtitles:English, French, German