That's the one. It's a fun watch.
NWR: So you had to cast a star.
Friedkin: Roy Scheider wasn't a star.
NWR: But he was well known. You wouldn't have cast your neighbour.
Friedkin: Why would I cast my neighbour? My neighbour was a schmuck. I wouldn't give him a cup of sugar.
[Friedkin lost out on casting Marcello Mastroianni and Lino Ventura.]
NWR: And how did Universal/Paramount feel about that?
Friedkin: They didn't give a shit.
The whole thing is here:
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Getting super nerdy now, apparently the Criterion 4k has two audio tracks. The original stereo mix and a modern 5:1. One of them has a gunshot at the end, one of them doesn't