One key element in the plot line of this movie is that the CIA needs a domestic liaison to work domestically. If this is true, that is relevant to the Russian narrative.
What seems to have happened with the Russian collusion thing, was the Democrats hired Fusion GPS to dig up dirt, they hired former (or current) MI6 agent Christopher Steele, who on my recollection seems to have consulted with some Baltic states who opposed Russia and by extension any potentially pro-Russian politicians. They created a list of unverifiable, and most likely entirely fraudulent allegations which were released to MI6, and shared with the CIA. John Brennan got them, and fed them to the FBI. At that point, he would have had an in-country liaison with the FBI, and a relatively open hand to use the resources of the CIA to spy on Trump and his campaign, which was his personal aim. He no doubt regrets, now, not going harder, as he no doubt could have done, and had Hillary won, his crimes would have not just been forgiven, but rewarded. Gangsters take care of their own.
This is what seems to have happened. I continue to thank God daily we were delivered the miracle of Trump’s victory in the face of all this treason.
My brain continues to reel that the nation is not outraged at a former CIA Director openly calling for a coup. That story was a blip, then it disappeared. But it is entirely emblematic of the deep seated anti-Americanism embedded within much of the Washington establishment. Small wonder we have so much trouble getting sane policy.