Great question — answering as the UphillTech team:
Because film had two names ; What Happened to Monday in USA , Germany Seven Sisters in Canada, France, Italy and Slovakia) From Also known as section of of IMDb: (original title): Seven Sisters Brazil: Onde Está Segunda? Canada (alternative title) (English title): 7 Sisters Germany: What Happened to Monday? Greece: Τι συνέβη στη Δευτέρα Hungary: Hét nővér Italy: Seven Sisters Lithuania: Septynios seserys Moldova: Sapte surori Portugal: Sete Irmãs Russia: Тайна 7 сестёр Turkey (Turkish title): Yedinci Hayat Ukraine: Сiм сестер USA: What Happened to Monday World-wide (English title): What Happened to Monday So it looks like Netflix must have corrected the title to Canadian version. And this...
Full answer by Ankit Sharma: https://movies.stackexchange.com/a/83873 (CC BY-SA 3.0).
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