City Hall of Los Angeles was used in the movie.

48 Hrs. (1982)

48 Hrs. is a 1982 American action comedy film directed by Walter Hill, starring Nick Nolte and Eddie Murphy as a cop and convict, respectively, who team up to catch a cop-killer. The title refers to the amount of time they have to solve the crime. This was Murphy's film debut (in a Golden Globe Award-nominated role), and Joel Silver's first film as a film producer. The screenplay was written by Hill, Roger Spottiswoode, Larry Gross, Steven E. de Souza, and Jeb Stuart.

• http://en.wikipedia.org/wiki/48 Hrs.
• Gordon, W. A., 2002, The Ultimate Hollywood Tour Book, North Ridge Books, Lake Forest, CA, 272 p.