Coba jelasin Penerimaan dari Once Upon a Time in Hollywood dong

Once Upon a Time in Hollywood meraup pendapatan kotor sebesar $142,5 juta di Amerika Serikat dan Kanada, serta $231,8 juta di negara lain, dengan jumlah keseluruhan mencapai $374,3 juta. Beberapa perkiraan menyebut pendapatan kotor film ini harus menyentuh $250 juta di seluruh dunia agar impas, manakala perkiraan lainnya menyebut $400 juta agar mendapatkan keuntungan.

Di Amerika Serikat dan Kanada, dilm ini diproyeksikan meraih pendapatan kotor sebesar $30–40 juta dari 3.659 bioskop pada akhir pekan pembukaan, with some projections having it as high as $50 million or as low as $25 million. The week of its release, Fandango reported the film was the highest pre-seller of any Tarantino film. The film made $16.9 million on its first day, including $5.8 million from Thursday night previews (the highest total of Tarantino's career). It went on to debut to $41.1 million, finishing second behind holdover The Lion King and marking Tarantino's largest opening. Comscore reported that 47% of audience members went to see the film because of who the director was (compared to the typical 7%) and 37% went because of the cast (compared to normally 18%). The film grossed $20 million in its second weekend, representing a "nice" drop of just 51% and finishing third, and then made $11.6 million and $7.6 million the subsequent weekends. In its fourth weekend the film made $5 million, bringing its running domestic total to $123.1 million, becoming the second-highest of Tarantino's career behind Django Unchained. In its ninth weekend, its global total earnings reached $329.4 million, surpassing Inglourious Basterds to become Tarantino's second highest global grosser behind Django Unchained.