A rigid packet with smoking articles, comprising: a parallelepiped-shaped container having a front wall, a rear wall, a bottom wall, and two lateral walls; at least one inner package which encloses a group of smoking articles, is housed inside the container, has a smaller cross dimension with respect to the cross dimension of the container; a lid hinged to the container to close an open top end of the container; and a collar, which is arranged and connected by gluing inside the container so as to project partly outwards of the open top end and engage a corresponding inner surface of the lid when the lid is arranged in a closed position and comprises two partition walls which extend from the front wall of the container to the rear wall of the container, and divide the inner volume of the container into three separate chambers (18, 19); wherein the two partition walls of the collar divide the inner volume of the container into a secondary chamber centrally arranged, and into two open-topped main chambers arranged on opposite sides of the secondary chamber, centrally arranged; and wherein the container is obtained starting from a first flat blank having a substantially elongated rectangular shape; the packet of smoking articles being characterized in that: two separate, independent inner packages are provided; the two inner packages are housed in the two main chambers; and the collar is obtained starting from a second flat blank which is shaped so as to be cut without waste from a continuous strip of wrapping material and is different and separate from the first blank. a parallelepiped-shaped container having a front wall, a rear wall, a bottom wall, and two lateral walls; at least one inner package which encloses a group of smoking articles, is housed inside the container, has a smaller cross dimension with respect to the cross dimension of the container; a lid hinged to the container to close an open top end of the container; and a collar, which is arranged and connected by gluing inside the container so as to project partly outwards of the open top end and engage a corresponding inner surface of the lid when the lid is arranged in a closed position and comprises two partition walls which extend from the front wall of the container to the rear wall of the container, and divide the inner volume of the container into three separate chambers (18, 19); wherein the two partition walls of the collar divide the inner volume of the container into a secondary chamber centrally arranged, and into two open-topped main chambers arranged on opposite sides of the secondary chamber, centrally arranged; and wherein the container is obtained starting from a first flat blank having a substantially elongated rectangular shape; the packet of smoking articles being characterized in that: two separate, independent inner packages are provided; the two inner packages are housed in the two main chambers; and the collar is obtained starting from a second flat blank which is shaped so as to be cut without waste from a continuous strip of wrapping material and is different and separate from the first blank. two separate, independent inner packages are provided; the two inner packages are housed in the two main chambers; and the collar is obtained starting from a second flat blank which is shaped so as to be cut without waste from a continuous strip of wrapping material and is different and separate from the first blank.