Barbie film has led to a major spike in sales for the toy for its manufacturer Mattel.Greta Gerwig’s film was released in July this year, and has since become the highest grossing film ever directed by a solo female director and the highest grossing film ever released by Warner Bros., having brought in over $1.4 billion (£1.2 billion).One knock-on effect has been that from July to September, as reported by the BBC, sales of Barbie toys increased by 16 per cent compared with the equivalent window in 2022, lifting the company to its first quarter of sales growth in a year.“Our strategy is serving us well,” said Mattel CEO Ynon Kreiz in a message to investors. “We are very well positioned competitively and expect a strong holiday season.”Mattel had previously said that it hoped to receive a $125 million (£103 million) boost from the film, most of which has already been realised.