Julia Garner makes her Debut as the Silver Surfer in 'Fantastic Four'

Julia Garner stars as one of the coolest comic-book characters ever in Marvel's new "Fantastic Four" film.The CinemaCon audience saw only a few glimpses of Garner's portrayal of the iconic Silver Surfer - her riding a galactic surfboard is a sight to behold - but it was one of the highlights of Marvel Studios' presentation, which also included new footage from "Thunderbolts*" (in theaters May 2) and "The Fantastic Four: First Steps" (out July 25).

The first trailer for "Fantastic Four" was released in February, but this exclusive look delves deeper into the story. In a retrofuturistic landscape, astronauts Reed Richards (Pedro Pascal), Susan Storm (Vanessa Kirby), Johnny Storm (Joseph Quinn), and Ben Grimm (Ebon Moss-Bachrach) went to space and returned as changed heroes with superpowers - Reed is super-stretchy, Sue can turn invisible, Johnny is a human torch, and Ben is now a rock monster known as the Thing. (Though he enjoys cooking with H.E.R.B.I.E., their robot.)

Sue reveals that she is pregnant, and Johnny tells her that she will make an excellent mother, but he is jokingly unsure about Reed as a father. All four have a close bond, and the world adores them, until the Silver Surfer, a herald of Galactus, arrives and warns that Earth has been "marked" by her massive planet-devouring boss (played by Ralph Ineson).

The footage did not show Galactus in full, but did show the back of his head looking down at the Statue of Liberty as the Fantastic Four scrambled to deal with this cosmic threat and reassure the worried public.

Pascal, Kirby, Quinn, and Moss-Bachrach are among the many actors announced last week - via director's chairs and a livestream - to be starring in "Avengers: Doomsday."