Continuity mistake: In district 2, as the train approaches Boggs states they need to get Katniss back. When he does he has hold of her arm. Camera cuts and now Katniss is around 6ft away from Boggs. (00:13:30)
Continuity mistake: Pay close attention to the gun pointed at Katniss in the exchange on the railway tracks in district 2. There are 2 shots of the conversation, one facing Katniss and one from behind. In the shot from behind the gun barrel is not touching Katniss. However in the front shots it is. Also there are 2 strands of hair that keep moving between the two angles. (00:15:00)
Continuity mistake: Katniss, Coin and Heavensbee are discussing Katniss staying in 13 and shooting some propo's to show she is still alive. Heavensbee has a pen in his hand that has the cap off. Camera cuts to Katniss and then back to Heavensbee and the pen lid is now replaced. In the shot of Katniss we see his arms and they do not make the motions of replacing the cap. (00:23:30)
Continuity mistake: Johanna says to Katniss at the wedding, "don't you want Snow to see you dance?" When she does her facial expression is one with a smile, camera cuts and instantly her facial expressions are completely different from a smile, and he head is leaning the opposite way. (00:26:30)
Continuity mistake: When Boggs and the team approach the area to film the first propo, we see them approach the square from behind and the ground is dry. Camera changes to the front and now the ground is wet. (00:45:40)
Continuity mistake: At the end, the blanket wrapped around the baby changes. In the wide shots, the red stripe is near the feet, but in the close up shots, the red stripe is around the body, next to Katniss' hand. And in the wide shot and first close up shot, the baby's right arm is lying on the blanket, but in following shots, the arm is under the blanket without Katniss doing anything.
Continuity mistake: When Katniss enters the room where all the Victors are waiting with Coin, Enobaria turns to see her twice.
Chosen answer: Katniss keeps up the appearance that she wants to be the one to kill Snow so that she can be in a position to kill Coin. She still hates Snow for all he's done, but sees that he's dying anyway. She realises Coin is the greater threat, and will simply rule as Snow did.