A bag-making and packaging machine comprising: a bag-making and packaging unit configured to form a sheet-like film into a tubular shape and seal the film formed into the tubular shape to thereby form the film into bags; and a film supply unit configured to hold a film roll into which the sheet-like film is wound and supply to the bag-making and packaging unit the film drawn from the film roll, wherein the film supply unit includes a plurality of film roll holding mechanisms (110a, 110b), each of the plurality of film roll holding mechanism including a shaft (111a, 111b) to which the film roll is attached and which rotatably holds the attached film roll, a frame that supports the plurality of film roll holding mechanisms, a frame shaft that rotatably supports the frame, a moving mechanism that rotates the frame to thereby move the film roll holding mechanisms (110a,110b) between at least a first position where the film roll is attached to the shaft and a second position, different from the first position, where the film is drawn from the film roll attached to the shaft to the bag-making and packaging unit, a splicing mechanism that splices together a trailing end portion of the film wound into the film roll attached to the shaft of one of the film roll holding mechanisms (110a,110b) and a leading end portion of the film wound into the film roll attached to the shaft of another one of the film roll holding mechanisms, and a film drawing mechanism characterised in that the film drawing mechanism respectively independently rotates each of the shafts (111a,111b) of the plurality of film roll holding mechanisms (110a,110b) to thereby draw the film from the film roll attached to the shafts of the plurality of film roll holding mechanisms, and in that the film drawing mechanism changes a drawing speed of the film when a bag-making and packaging action is performed in the bag-making and packaging unit. a bag-making and packaging unit configured to form a sheet-like film into a tubular shape and seal the film formed into the tubular shape to thereby form the film into bags; and a film supply unit configured to hold a film roll into which the sheet-like film is wound and supply to the bag-making and packaging unit the film drawn from the film roll, wherein the film supply unit includes a plurality of film roll holding mechanisms (110a, 110b), each of the plurality of film roll holding mechanism including a shaft (111a, 111b) to which the film roll is attached and which rotatably holds the attached film roll, a frame that supports the plurality of film roll holding mechanisms, a frame shaft that rotatably supports the frame, a moving mechanism that rotates the frame to thereby move the film roll holding mechanisms (110a,110b) between at least a first position where the film roll is attached to the shaft and a second position, different from the first position, where the film is drawn from the film roll attached to the shaft to the bag-making and packaging unit, a splicing mechanism that splices together a trailing end portion of the film wound into the film roll attached to the shaft of one of the film roll holding mechanisms (110a,110b) and a leading end portion of the film wound into the film roll attached to the shaft of another one of the film roll holding mechanisms, and a film drawing mechanism characterised in that the film drawing mechanism respectively independently rotates each of the shafts (111a,111b) of the plurality of film roll holding mechanisms (110a,110b) to thereby draw the film from the film roll attached to the shafts of the plurality of film roll holding mechanisms, and in that the film drawing mechanism changes a drawing speed of the film when a bag-making and packaging action is performed in the bag-making and packaging unit. a plurality of film roll holding mechanisms (110a, 110b), each of the plurality of film roll holding mechanism including a shaft (111a, 111b) to which the film roll is attached and which rotatably holds the attached film roll, a frame that supports the plurality of film roll holding mechanisms, a frame shaft that rotatably supports the frame, a moving mechanism that rotates the frame to thereby move the film roll holding mechanisms (110a,110b) between at least a first position where the film roll is attached to the shaft and a second position, different from the first position, where the film is drawn from the film roll attached to the shaft to the bag-making and packaging unit, a splicing mechanism that splices together a trailing end portion of the film wound into the film roll attached to the shaft of one of the film roll holding mechanisms (110a,110b) and a leading end portion of the film wound into the film roll attached to the shaft of another one of the film roll holding mechanisms, and a film drawing mechanism characterised in that the film drawing mechanism respectively independently rotates each of the shafts (111a,111b) of the plurality of film roll holding mechanisms (110a,110b) to thereby draw the film from the film roll attached to the shafts of the plurality of film roll holding mechanisms, and in that the film drawing mechanism changes a drawing speed of the film when a bag-making and packaging action is performed in the bag-making and packaging unit.