By Stephen M. Silverman
Updated June 03, 2002 11:00 AM

So much for Hollywood’s fears over how audiences would react to a movie about a terrorist attack. “The Sum of All Fears,” starring Ben Affleck and Morgan Freeman, took in an estimated $31.2 million this weekend, marking the best debut ever for the movie franchise based on novelist Tom Clancy’s thrillers about CIA agent Jack Ryan. The last Clancy novel to hit the screen was 1994’s “Clear and Present Danger,” which starred Harrison Ford (and took in $20.3 million its first weekend). “Sum” knocked “Star Wars: Episode II — Attack of the Clones” out of the No. 1 berth, a spot it’s held for the past two weekends. With estimated earnings of $20.7 million this weekend, “Clones” has so far grossed about $232 million. “Spider-Man” is showing legs, too –collecting an estimated $354 million in a swift 31 days. That beats the 40 days required by 1999’s “Star Wars: Episode I — The Phantom Menace” to reach the $350 million mark. The weekend’s Top 10 movies, according to studio estimates, were as follows: