Abstract: The method for forming a packaging (1) for a plurality of containers (2) arranged in lines and rows involves wrapping the group of containers with a section of heat-sealable plastic film (3), the two end flaps of which overlap so as to be able to be heat-sealed with one another. Pre-cut lines (5), parallel to the direction in which the film itself extends, are formed beforehand in the film. The pre-cut lines are positioned at a distance from one another and, in the finished packaging, each pre-cut line is arranged between two adjacent rows of containers. One side of the film used is provided, in the position where a longitudinal pre-cut lines is already present or is to be formed, with a strip-shaped area which is not heat-sealable when it comes into contact with the film itself. The width of the strips which are not heat-sealable is chosen so as to cover the maximum overlapping imprecision due to the packaging machines.