Dirty Harry was released in 1971. Most people didn’t have VCRs until the late 80’s. There is more than just one line or reference from that movie-as you well know. JR lied to investigators when he mentioned that he had seen the movie “Speed”, but it was on an airplane and I didn’t listen to the sound. Ya, ok. Kinda convienant? .
That’s like saying- Yes, it was me who stole a cookie from the cookie jar, however I didn’t eat the cookie.
My rather obvious point is that Patsy could have become familiar with Dirty Harry at many points and in various ways between 1971 and 1996.
The other obvious thing, which I know you are only pretending to not understand, is that John was talking about Speed on June 23, 1998, and nobody is claiming that John was never complicit. Anybody who is even slightly familiar with JonBenet (or even Foreign Faction) knows that Steve Thomas believes that John went from suspicion to certainty. Exactly when and how that happened, we don't really know.
It would be nice to know what John said early in the morning on Dec. 26. We know he told French that Patsy had found the note at the bottom of the stairs. He didn't say he saw it there himself. He didn't say he moved it over by the patio door.
He said that he read to both kids before they went to sleep. He subsequently changed that, possibly because he didn't want to be the last known person to see JonBenet.