If the film clashes with what Witt said, then there are two possible ways of resolving the conflict. Either Witt was wrong or the film was altered. Of the two, I find Witt being wrong being a far more likely resolution of the conflict unless someone has evidence the film was altered. For three and a half decades I have seen one conspiracy hobbyist after another claim one film or another has been altered without presenting any evidence to support the claim. I accept all films as genuine until and unless someone provides evidence of alteration.
There's a big difference between a witness giving testimony that is "wrong" vs a "lie". For you to describe Witt's testimony as "wrong" vs what we see on the Bronson Film, signals you are not completely familiar with Witt's HSCA Testimony. There's nothing wrong with admitting this, and your unfamiliarity regarding the history of the Bronson Film. For you to reply with a "So?", is akin to a blind man reaching out in the dark. There's also nothing wrong with asking specific questions.