Continuity mistake: Bill Haydon is on a call with the Hungarian embassy. He's holding his phone in his right hand talking on it, but then slams it down with his left hand.
Suggested correction: Watch the scene, he lowers the receiver to speak to Jerry and his hands come together on the receiver, the camera cuts to Jerry, then back to Haydon hanging up the phone with the left hand, closest to the cradle. Watch it again, seems to match correctly.