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.
Factual error: When Katniss approaches the gate to President Snow's mansion, just after the massacre of civilians in the large plaza, she sees her sister attending to wounded and runs toward her. There is a fiery explosion and Katniss is thrown onto her back and we see that radiant heat from the blast has caused the front of her coat to burst into flames. Flash burns are a common injury following an explosion, but Katniss has not a mark on her face, and not a trace of redness then, or shortly afterward when she is treated in a dispensary.