- Runtime
- 2h 7m(127 min)
- 2h 36m(156 min) (Ultimate Final Cut) (Germany)
- 1h 59m(119 min) (Dario Argento's European Version) (Italy)
- 2h 19m(139 min) (extended Cannes) (United States)
- 1h 32m(92 min) (TV) (Japan)
- 2h 50m(170 min) (assembly cut) (United States)
- Sound mix
- 4-Track Stereo(German prints)
- Mono
- Color
- Aspect ratio
- 1.33 : 1(open matte)
- 1.85 : 1
- Camera
- Arriflex 2C
- Arriflex 35 BL I
- Laboratory
- Technospes S.p.a., Roma, Italy(Dario Argento's European Version)
- Technicolor, New York (NY), USA
- Film Length
- 3,270 m(Italy)
- Negative Format
- 35 mm
- Cinematographic Process
- Spherical
- Printed Film Format
- 35 mm
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