Discussion

Conclusion

Based on the text analysis results of the review data,  we conclude that there are some significant differences in DC reviews and Marvel reviews. Those differences are cohesive to the actual differences in DC movies and Marvel movies in the following three ways: 1)  DC's reviews are more negative and diverse in terms based on the evaluations of term frequency and topic models, and Marvel's reviews are more positive and uniform. Such a result indicates that audiences have similar favorable impressions about Marvel movies,  which correspond to the higher box offices and the more stable scores of Marvel movies.  2) The positiveness and negativeness in reviews also reflect their differences in themes and styles. Marvel movies are featured with funny and lighthearted styles, and their themes usually emphasize love, friendship, and encouragement, elements that are related to real life. DC movies, on the contrary,  prefer to highlight the serious and mysterious atmospheres in stories and to emphasize more on evil, sin, and punishments. 3) The diversity of DC's reviews and the unicity of Marvel's review also suggest that Marvel has more integrated and consecutive storylines across movies with a narrower range of topics, and DC explores various topics with separate storylines among their movies.