"The world looks to you as a model for addressing climate change and the need for greater democracy," actor Mark Ruffalo said in a video he released on social media, as part of a campaign by Amnesty International (AI) Chile to pass its new constitution.

"It's time to turn the page on the cruelty of the (Augusto) Pinochet years and embrace a Constitution of a new and changing world," added the Marvel Cinematic Universe (MCU) star.

Ruffalo also offered a salute for "those fighting for the change of Constitution," highlighting that the text would give "more equality, humanity and consideration in it."

"I know great people worked on this," noted Ruffalo, concluding with the campaign slogan AI has pushed ahead of the weekend's historic referendum: "Approve is Human."

The message from the actor comes a week after he wrote that "all eyes and hope are on Chile," joining world-class artists such as Pedro Pascal and Mon Laferte.

The Chilean constitution process, is a mechanism that was created to contain the massive protests against inequality that erupted at the end of 2019, leaving some 30 dead, hundreds with eyes damaged by state agents and thousands injured.

After a year of debate, a Constitutional Convention, the first in the world and one with reserved seats for Indigenous peoples, delivered a draft constitution that hopes to replace the current one, inherited from the dictatorship of Augusto Pinochet (1973-1990), and partially reformed in democracy.