Smoking article wrapper and method of making a smoking article A smoking article component comprises a curved sheet wrapper of weight 40 gsm or more that includes a plurality of lines of strength discontinuity at which the wrapper presents a visually discernable non-uniformity in its curvature. The wrapper can be used for example to wrap the filter of a cigarette as a plug wrap for the filter so as to comprise a wrapper of weight 80 gsm or more.