Even an entry level photographer knows this basic no no. PM Lee Hsien Loong clarifies his National Day message was not filmed with 'green screen' backdrop PUBLISHEDAUG 10, 2017, 7:04 PM SGT SINGAPORE - Prime Minister Lee Hsien Loong has responded to suggestions that his National Day message was filmed in a studio instead of at Bay East Garden. Several netizens had the impression that a "green screen" was used to create the impressive backdrop - which consisted of iconic landmarks such as Gardens by the Bay and Marina Bay Sands - due to the bright lighting in his video. The "green screen" technique is commonly used in photography and filming, which allows for a separately filmed background to be added to the final image or video. Responding to one such comment on his Facebook post on Thursday (Aug 10), PM Lee said: "It's not a green screen. My children asked me the same question. "We were recording on location at Bay East Garden at sunrise. Mediacorp set up extra lighting to brighten up the foreground. Maybe that's why the background looks like a backdrop." PM Lee also uploaded a photo of himself at the filming location.