'The popcorn will come at a value', 'The popcorn isn't really free', 'The popcorn Expense $10', 'You must pay for the popcorn' or, merely, 'The popcorn isn't free'. The statement, 'You can take your baby over the flight free of demand' might be in opposition to 'You should pay out to get your little one on a plane' or 'It's not free', or informally