Well-known San Francisco bars and restaurants in the film include Tosca Cafe and Vesuvio, both on Columbus Avenue in the North Beach district, and Red's Java House at Pier 40 on the waterfront. Several scenes were also filmed at the Palace of Fine Arts with its unmistakable rotunda and lagoon.
'Mark Pellegrino' and Titus Welliver costar in this movie, both on the same side of law enforcement. Later, they would costar in the television series Lost (2004), where they would play opposing sides in the island's good and evil mythology as Jacob (the man in white) and The Man in Black.
The 'Jessica Shepard' character's promotion from Officer to Inspector isn't as big a jump as it sounds. The SFPD, unlike nearly all other municipal police departments, does not have a traditional Detective rank. The Inspector rank is simply the next rank above Officer, and an Inspector's responsibilities are exactly like those of a Detective in most other police departments.
The 'Jessica Shepard' character's final confrontation with the villain was filmed at the San Francisco Maritime National Historic Park. The ship behind her is the Balclutha (1886). She was acquired by the San Francisco Maritime Museum in 1954 and designated a National Historic Landmark in 1985. Two of her three square-rigged masts and their lower yards are clearly visible behind Miss Shepard.