I wouldn't recommend watching The JFK Conspiracy - The Case of Jim Garrisson unless you're into the details and characters of Jim Garrison and Oliver Stone's film JFK. Many of the scenes are so close to the movie that it's a credit to the film-maker that he captured the characters and setting so accurately.
It is however made for TV so much of the framing is skewed towards lies.
For example:
We now know that Clay Shaw was a CIA asset as testified by CIA director Richard Helms so there's no question why the CIA and Warren Commission had to conceal that the first time round. Lee Harvey Oswald was a CIA asset too, but also working for New Orleans FBI and U.S. Customs.