Is the Zapruder film a composite or an original?

[James Dahl]

So he didn't recall stopping his camera.  Read his grandaughter's book.  You might learn something.

Why do I have to read his granddaughter's book, she wasn't there.  Zapruder was there and he said he never stopped filming.  You are wrong

[Royell Storing]

Zapruder said in the Clay Shaw trial that the film shown to the jury (multiple times) was the same one that was developed in Dallas the day of the assassination. The trial film was one of the copies made by Time/Life that was subpoenaed by Garrison. That copy was bootlegged and released to large parts of the public.

From the trial:

Q: Mr. Zapruder, from having seen what was projected on this film, can you tell the Court whether or not it appears to be the same as you viewed your original film on November 22, 1963 in Dallas, Texas?

A: Yes, it does.

It seems obvious that if large parts were cut out or changed that he would have noticed it. Maybe not but we have lots of other evidence that is, for me, persuasive that the film wasn't deliberately altered.

The rest of his testimony is here: http://www.jfk-online.com/zaprudershaw2.html

           Zapruder was Unable to ID Himself on the Zapruder Film Still Frames shown to him during his WC Testimony. Now, years later you want to swear by him when he is viewing a film in the middle of a packed courtroom? Zapruder was paid $150,000 for his film. This $150,000 would make it difficult for him to discredit an alleged copy of the film he sold to Time/Life for a small fortune. In 1963 when Zapruder sold his film for $150K, the average American was making roughly $4,000. $150,000 was a Ton of $$$ back in 1963. 

[Matt Grantham]

Royell Sterling that is a take I have never heard or considered I believe I also have heard that Greer had all kinds of problems making that turn and driving erratically during the time period in the lapse in the film

[Royell Storing]

Royell Sterling that is a take I have never heard or considered I believe I also have heard that Greer had all kinds of problems making that turn and driving erratically during the time period in the lapse in the film

         Yeah, there are stories that Greer almost jumped the curb as he steered a Hard left in order to correct the direction the JFK Limo was heading.

[Robin Unger]

Isn't it a little odd that all the police motorcycles are ahead of the limousine at the begging of the Zapruder film and then behind when it restarts? My understanding is that Zapruder claimed he never stopped filming

The motorcycles seen at the START of the Zapruder film are the " lead motorcycles " positioned ahead of Curry's lead car

https://www.jfkassassinationgallery.com/albums/userpics/10001/Motorcade_image_compilation.jpg

[Steve Barber]

Why do I have to read his granddaughter's book, she wasn't there.  Zapruder was there and he said he never stopped filming.  You are wrong

 No, I am not wrong.

[Steve M. Galbraith]

Why do I have to read his granddaughter's book, she wasn't there.  Zapruder was there and he said he never stopped filming.  You are wrong

Sorry, where did Zapruder state he never stopped filming?

I understand that in the interviews/testimony he doesn't mention stopping. But where does he say explicitly he never stopped?