Josh Heuston is set to star in Throttled, an upcoming film based on the book from Lauren Ashers’ Dirty Air series. Asher‘s Throttled, the first of four books in the Dirty Air sports romance series, was published in 2020. It follows a young woman joining her brother on the racing circuit and falling into “a forbidden, high-stakes romance with her brother’s ruthless teammate and fiercest racing rival,“ played by Off Campus star Heuston. Melissa Osborne (My Fault: London, My Oxford Year) will adapt the script and Nzingha Stewart (Daisy Jones & the Six) is set to direct. Max Handelman and Elizabeth Banks of Brownstone Productions are producing…