Octorox said:"5.51 In Star Wars: Episode IV--A New Hope, the take-off of the Millenium Falcon was filmed as a model against a blue screen and matted into a shot of a building with imperial stormtroopers firing upward."- Film Art 8th edition
The shot they show is a cg shot from the SE doh....The section is about matte work btw
If I were you I'd contact the publisher and inform them of the error. Maybe they can fix it for the next edition.