1) The document discusses lessons learned from creating a preliminary film task, including properly following the 180-degree rule when filming characters moving between shots, using match cuts to smoothly transition between shots of the same action, and executing shot/reverse shot patterns correctly. 2) It notes that the preliminary task broke the 180-degree rule when filming a character walking through a door with camera angles too far apart, and that shot/reverse shot was imperfect because the first and third shots did not match. 3) Carefully filming clocks was also a lesson, as the time displayed changed unrealistically between shots in the preliminary sequence.