The invention provides a film dressing made of a flexible film with opposite inner and outer surfaces. The inner surface is adhesive and can be applied e.g. to cover a wound. The flexible film is supported by a removable support layer which is bonded to the outer surface of the flexible film. To facilitate separation of the support layer from the flexible film, a tap is attached to the support layer in a non-linear interface zone. The non-linearity supports easy separation and thereby reduces the risk of separation of the flexible film from the wound during separation of the support layer from the flexible film.