Along Came a Spider (2001) – Baltimore

The Blair Witch Project (1999) – Burkittsville, Granite, Ellicott City, Rockville, Gaithersburg, Brunswick, Beallsville, Wheaton

Ellicott City: The house in the final scene was filmed at Patapsco State Park at 8020 Baltimore National Pike.
Gaithersburg: Seneca Creek State Park at 11950 Clopper Road in was used.
Wheaton: The scene where the cast leaves Josh’s House
Beallsville: Staub’s Country Inn at 19800 Beallsville Road
Brunswick: The Silver Rail Diner

Deep Impact (1998) – West River

West River: Alan Rittenhouse’s boat dock

Enemy of the State (1998) – Baltimore

Gods and Generals (2003) – Sharpsburg, Baltimore, Hagerstown, Middletown

Sharpsburg: The Antietam Battlefield

Ladder 49 (2004) – Baltimore, Annapolis

Patriot Games (1992) – Annapolis

Red Dragon (2002) – Baltimore, Sykesville

Runaway Bride (1999) – Baltimore, Berlin, New Windsor, Snow Hill

Baltimore: Portrayed as New York City in the film.
Berlin: Used for the Main St. exteriors, Peninsula Bank, and the Bank Scenes.
New Windsor: Used for the church scene.
Snow Hill: Scene for a high school.

Serial Mom (1994) - Baltimore, Towson

Baltimore: Filming locations include the Old Baltimore County Courthouse at 400 Washington Avenue and Video Americain at 400 W. Cold Spring Lane.
Towson: Residential scenes were filmed in a real neighborhood on Aigburth Avenue. In an attempt to regulate the activity in the area as much as possible, contractors in the area had to stop their work for every take. Also used in Towson was Towson Senior High School at 69 Cedar Avenue.

Sleepless in Seattle (1993) – Baltimore