Beautiful Boy was filmed in San Francisco and Los Angeles in the United States of America.
Golden Gate Bridge View Point
In movie
Scene where Nic is having a hard time.
Real
Scene was shot This location is near Battery Spencer, the old artillery battery, built in 1897. It located on the cliffs close to the northern part of the Golden Gate Bridge.
Mill Valley
University of Southern California
In movie
Scene where Nic and Julia are having a conversation at the University.
Real
Scene was shot The University of Southern California is a private research university in Los Angeles, California. Founded in 1880, it is the oldest private research university in California (source Wikipedia).
Los Angeles
Haight Street
In movie
Scene where David Sheff is asking a girl on the street if she knows Nic. He then asks if she wants to eat something and talk to him.
Real
Scene was shot Haight Street is the principal street in San Francisco's Haight-Ashbury district, also known as the Upper Haight due to its elevation. It is named after California pioneer and exchange banker Henry Haight (1820–1869).
Wikipedia. The neighborhood is known for being the origin of the hippie counterculture.
San Francisco