The Battle of Wancheng was an important battle during the Three Kingdoms period. It took place in 208 AD. In this battle, Cao Cao led his army to attack Wan City and successfully captured the city. But in this battle, Dian Wei and Cao Ang both died. According to the description of the Romance of the Three Kingdoms, Dian Wei had performed well in this battle and was extremely brave. In the end, he died heroically. Cao Ang was also killed miserably by the enemy in this battle. As for why the Romance of the Three Kingdoms and the New Three Kingdoms did not film the Battle of Wancheng, it was probably because the Battle of Wancheng was a relatively famous battle during the Three Kingdoms period and was also an important victory for Cao Cao. Filming the Battle of Wancheng might increase the plot and space, and it might affect the storyline of Romance of the Three Kingdoms and the New Three Kingdoms. Therefore, it was understandable that they did not film the Battle of Wancheng in order to avoid unnecessary influence.