'The popcorn arrives at a cost', 'The popcorn is not free', 'The popcorn Value $10', 'You will need to pay for the popcorn' or, just, 'The popcorn isn't really free'. The statement, 'You may take your child on the flight free of charge' would be in opposition to 'You need to shell out to just take your newborn with a plane' or 'It's actually not fr