Surreptitious, or secret, filming and recording are powerful journalistic tools. The material obtained covertly may be the only independent account of the wrongdoing it captures. here must be a strong public interest justification for filming and broadcasting any footage which might infringe someone’s privacy, for example, evidence of breaches of planning or the criminal law.
Yes, film producers use similar tactics to that used by George Lucas to keep his filming of "Return of the Jedi" under wraps. Keeping the paparazzi away from one's film sets will allow the actors to live more normal lives and gives them the opportunity to focus on their work rather than having a camera shoved in their face. Film producers will then have more control over what is released to the public and don't have to worry about leaked images and plot speculation as a result of tabloid images.
Film producers should go to extreme measures in order to keep the story under wraps and away from the prying paparazzi. For instance, George Lucas George Lucas claimed that he was filming a horror movie called "Blue Harvest" during the filming of Return of the Jedi. In this age of social media, it is more imperative than ever that measures are taken to ensure moviegoers do not get spoilers.
In this day and age especially with everybody being a paparazzi now I think more filmmakers should keep their big projects secret. In a world full of spoilers, I think it would be a necessity to keep these vultures at bay so us casual film goers can enjoy the film without some idiot ruining us.