A version of the Nguyễn Dynasty film clapperboard with the coat of arms of the Nguyễn Dynasty added to it to differentiate it from films produced by the Grand Duchy of Baden, which has a near identical flag. As well as other similar flags as the combination "Yellow-Red-Yellow" has been used a number of times for flags throughout history. 
The coat of arms is used because it's more distinctive.
This vector image includes elements that have been taken or adapted from this file:
Donald Trung Quoc Don (徵國單), Jedan02 (Musée Annam sock), Namkhanh02 (Musée Annam sock), Goran tek-en, and the Great Brightstar.