A baler (102) includes a plurality of pressing elements (120, 202) for pressing a mass of bale material in a bale chamber (114) to form a round bale, and a binding apparatus (138) for binding the bale in the bale chamber with film material (205). The baler further includes either a blocking element (204) between an adjacent pair of pressing elements to block the passage of a lead-in end of the film material between the pair of pressing elements, or an endless belt (216) that extends around a pair of pressing elements to block the passage of a lead-in end of the film between the pair of pressing elements, or a guide element (211) adjacent the feed opening (208), which presses a lead-in end of the film towards the bale material in the baler and prevents the passage of the lead-in end outwards through the feed opening.