Prop money is used constantly in film, television and music video. Productions rely on it for the simple reason that working with actual money is expensive and difficult to secure. Visual accuracy counts on camera: detail that holds up under a macro lens.
Prop currency works equally well in every shot. Wide shots permit lower detail, while detailed shots demand accurate colour and texture. Banded stacks matters when cash is the focus. Different denominations provide flexibility for international settings.
Prop cash must differ from genuine currency in defined ways. Regulations differ between jurisdictions, PropCash typically covering physical differences and clear labelling. Reputable suppliers make within those rules. Attempting to pass prop currency in a transaction is a criminal matter regardless of the manufacturing standard.
Music video production employs prop currency more visibly than almost any other production type. The genre often calls for substantial volumes. Photography shoots face the same requirements but with higher resolution capture. Specifying prop money rated for close work prevents problems in post.