The Hongmen Banquet was a famous banquet in Chinese history and one of the most important events in the Chu-Han War. The movie " Banquet at Hongmen " was adapted from this period of history and told the story of Liu Bang defeating Xiang Yu at the banquet. However, there were many differences between movies and historical facts. There were some problems with the historical details depicted in the movie 'Feast at Hongmen'. For example, the movie did not mention the morale of Xiang Yu's army, nor did it show the unity and strategy of Liu Bang's team. In addition, the movie did not describe Liu Bang rejecting Xiang Yu's proposal at the Hongmen Banquet but directly accepting his suggestion. This was not recognized in history. The movie " Feast at Hongmen " also had an error in the timing of historical events. In the movie, the Hongmen Banquet took place in 206 B.C., but in history, it took place in 205 B.C. This difference made the characters and plot in the movie inconsistent with real history. The description of historical events in the movie Feast at Hongmen was also somewhat subjective. For example, the movie portrayed Liu Bang as a weak and incompetent person, which was not recognized in history. In fact, Liu Bang was a famous military commander and politician in Chinese history. He defeated Xiang Yu through a series of strategies and actions. In summary, there were many differences between movies and historical facts. Although movies are fictional stories, they can help people understand history. We should learn the truth of history through objective historical books, documentaries, and online resources.