Effects

A film set features a helicopter and military vehicles in front of a green screen, which transitions to a digitally rendered scene of a war-torn city with the same elements. The sequence continues with a green screen setup for a rainy street scene, followed by a football match on a field with a green screen backdrop, then a digitally created stadium filled with spectators. The final scene shows a historical battle reenactment with soldiers and a cannon in front of a blue screen, which transitions to a digitally enhanced version of the same scene.