What's the Difference between The Sum of All Fears the Book and The Sum of All Fears the Movie?
                      
                                
                    
                
                
                     
                
                
               
                
                     
                        
                        
                        
                        
                                    
                            
                                    
                        
                            
                            
                                
                                    | In the Book | In the Movie | 
                                
                                
                                
                                 
                                    | Jack Ryan 
 | Jack Ryan Portrayed by: Ben Affleck
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                                The Sum of All Fears Book vs  Movie
                                
                            
                            
                         
                        
                        
                        
                        
                    
                            
                             
                                
                                
                                
                                    | In the Book | In the Movie | 
                                
                                
                                        
                                            | President Fowler is replaced by his Vice-President, Roger Durling, at the end of the book. | President Fowler remains in office at the end of the movie. | 
                                    
                                     
                                            | Fowler is strongly hinted to be a Democrat. | Fowler's party affiliation is not elaborated upon. | 
                                   
                                        
                                            | Ryan suffers from mild alcoholism during the novel. | Ryan has no drinking problem. | 
                                    
                                     
                                            | Cathy Ryan knows the former National Security Advisor, as she was her former professor. | Cathy Ryan does not know the National Security Advisor. | 
                                   
                                        
                                            | President Fowler was elected after his unnamed predecessor (who was of the opposite party) deliberately threw the election at the conclusion of Clear and Present Danger. | President Fowler was seemingly elected on a platform of a more peaceful, gentler world. |