Eternals made its big premiere in LA. Response to the movie, which has the most diverse Marvel cast ever, has been strong.

We are three weeks out from the release of Marvel's most ambitious (and risky) movie to date — Eternals. 

With Eternals, fans are being introduced to a new collection of super heroes. The Eternals are an immortal alien race who have secretly lived on Earth for over 7,000 years (And sat out all that pesky Avengers: Endgamestuff.). Not only are they making their feature film debut but we're pretty sure only diehard fans of the comics are familiar with the characters. 

The movie made its premiere at the El Capitan Theatre in Los Angeles on Monday, October 19th. Oscar-winning director Chloé Zhao and the stacked cast — including Gemma Chan, Kumail Nanjiani, Brian Tyree Henry, Kit Harington, Salma Hayek, and Angelina Jolie — were there for the premiere. Selected members of the press were also in attendance. And although the official embargo doesn't lift until October 24, 11 a.m. PT, there have been a bunch of early reactions about the movie on Twitter. 

And, unsurprisingly, the response has been quite positive. There seems to be two truisms: the movie is unlike any other Marvel movie. And that Eternals has a massive scope, with the movie covering thousands of years of history.

Plot details were pretty sparse. However there was one detail — which fans are calling a spoiler — revealed

Warning, spoiler alert. We repeat — SPOILER ALERT. 

One of the details revealed is information about the post credit scene. There is an appearance from Thanos' brother, Ethos, who will be played by pop superstar Harry Styles. Matt Donnelly, a film writer for Variety, broke the news (to the dismay of MCU fans.)

Eternals comes out on November 5th. And it's the first MCU movie since Shang-Chi and the Legend of the Ten Rings in September. Watch the final trailer for Eternals below.