Is Vanilla Sky based on open your eyes?

Yes, "Vanilla Sky" is indeed based on the Spanish film "Abre los ojos" (translated as "Open Your Eyes" in English). "Vanilla Sky" is a 2001 American psychological thriller film directed by Cameron Crowe and stars Tom Cruise, Penélope Cruz (who also appeared in the original Spanish film), and Cameron Diaz. It is a remake of the 1997 Spanish film "Abre los ojos," which was directed by Alejandro Amenábar. While "Vanilla Sky" shares many similarities with "Open Your Eyes," it also has its own unique interpretation and narrative elements.