An inflatable chroma key backdrop wall for use on location in the film industry, comprising: an inflatable body having an operative surface comprising a plurality of panels, the panels configured such that the operative surface is substantially smooth when the body is inflated; a tensioning member which in use covers at least a portion of the operative surface, wherein the plurality of panels and the tensioning member cooperate to define a substantially planar front surface when the body is inflated; and an external sheet having a colour suitable for use in chroma key compositing, wherein the external sheet is supported by the front surface.
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