I just finished the Last Second in Dallas documentary.
This one mostly focuses on Josiah Thompson’s research but gives both sides (Thompson’s views and the official views) an objective hearing. The film also avoids speculation about "Who" killed JFK or "Why" he was killed. It strictly focuses on the forensics of what happened in Dealey Plaza.
There isn’t much that I didn’t already know in this film but it does a decent job of summarizing the criticisms of the official investigations.
So for people new to JFK assassination history (most people under age 50), it’s a good overview of the facts on both sides.
I definitely enjoyed JFK Revisited more but this film is very good too.