Steven Spielberg is the leading film director of all time when it comes to the box office. Below are a list of the motion pictures he has direct and the box office. Also listed is the opening-weekend box office. Year Title Gross Sales (Millions) Opening 1974 Sugarland Express 7.5 NA 1975 Jaws 260.0 7.0 1977 Close Encounters of the Third Kind 132.0 5.3 1979 1941 31.7 2.7 1981 Raiders of the Lost Ark 242.3 8.3 1982 E.T. 435.1 11.8 1984 Indian Jones and the Temple of Doom 179.8 25.3 1985 Color Purple 98.4 1.7 1987 Empire of the Sun 22.2 1.3 1989 Indiana Jones and the Last Crusade 197.1 29.3 1989 Always 43.8 3.7 1991 Hook 119.6 13.5 1993 Jurassic Park 357.0 47.0 1993 Schindler’s List 96.0 0.6 1997 Lost World 229.0 72.1 1997 Amistad 44.2 4.5 1998 Saving Private Ryan 216.5 30.5 2001 A.I. Artificial Intelligence 78.6 29.3 2002 Minority Report 132.0 35.6 2002 Catch Me if You Can 164.6 30.0 2004 The Terminal 77.8 29.0 2005 War of the Worlds 231.7 64.8 Raiders of the Lost Ark, was the first movie that Spielberg released in more than 1,000 theaters at once. Previously, it was the practice to limit the number of theaters in the first couple of weeks before going into general release. a. Given the above, what would you predict for the next Spielberg movie at the box office? b. What factors go into predicting the box office of a motion picture? c. Would it make a difference for the movie War of the Worlds at the box office if it starred an unknown actor or Tom Cruise ? Please Show all formula .