:06:00
one of many technical
and quasi-technical terms...
:06:03
employed throughout the movie.
:06:24
Dan Aykroyd is a true believer
in the paranormal.
:06:27
He's a member of The American Society
of Psychical Research.
:06:31
He's been intrigued with psychic
disturbances and paranormal activity...
:06:33
since he was a boy.
:06:35
Dan Aykroyd's original line here
was in reference...
:06:37
to a "multiple
high-altitude rockfall."
:06:40
In post production, Aykroyd looped the
famous "mass sponge migration" line.
:06:43
Several dialogue changes
were the result of audience tests...
:06:46
the producers ran
during post production.
:06:56
Murray's line was inspired
by a canceled experiment...
:06:58
proposed by John Lilly, a researcher
in dolphin communication...
:07:01
who proposed drilling a hole in his head
to test some higher brain function.
:07:04
The line..."That would have worked
if you hadn't stopped me"...
:07:07
was pure improvisation
by Harold Ramis.
:07:18
Though written in such a way that it
could be staged later in the studio...
:07:21
this scene was shot in a caged area
inside the main reading room...
:07:24
all part of the whirlwind shooting
session at the New York Public Library.
:07:29
Much of Venkman's dialogue sounds so
characteristically like Bill Murray...
:07:32
that many critics assumed he had
written or ad-libbed all his own lines.
:07:35
In actuality, most of his lines
were scripted for him.
:07:38
Co-writer Ramis said, "I like
putting myself inside Bill's head.
:07:41
Even if I don't get it exactly, it gives
him a strong anchor to play off of."