Murray faces charges of involuntary manslaughter in the pop star's death.
Superior Court Judge Michael Pastor approved a motion by Sony Pictures to stop a subpoena for 16 hours of video that did not appear in the film "This Is It." Pastor said the images are valuable to the studio and do not show the singer in poor health before his death, as Murray's attorneys had claimed.
"There is absolutely nothing in those materials that could have been of assistance to the defense," Pastor said.
The footage could be used later for extended versions of "This Is It."
Prosecutors wanted to use the video to show Jackson was well.
Murray's trial begins on Sept. 8. He has pleaded not guilty to causing Jackson's death on June 25, 2009, with an overdose of propofol and other sedatives.
The Associated Press contributed to this report.
