'Lego Movie 2' and 'Bumblebee' Drop Awesome Nostalgic Trailers

The first looks at the prequel and sequel, respectively, dropped Tuesday and immediately captured the interest of fans, who've been rabidly sharing both previews. The first "Transformers" franchise spinoff takes place decades before the eponymous Autobot met Sam Witwicky (Shia LeBeouf) in the first blockbuster installment, and this time we'll see Bumblebee bonding with a teenage girl (Hailee Steinfeld), who finds the yellow Bug in a junkyard in 1987 before discovering it's alive and transformable.

"You got people out there who need you," Steinfeld's character says in the clip. "This is why you're here."

This movie looks like it's going to bring us back to "Transformers" roots -- combining heart and action. And let's be real, Bumblebee is the best part of the "Transformers" franchise, anyway.

The film also features John Cena in what looks like a much more serious role than we are used to seeing him in after his recent roles in comedies "Blockers," "Daddy's Home 2" and "Trainwreck."

Meanwhile, everything is not as awesome as we thought in the world of LEGO.

"The LEGO Movie 2: The Second Part" is set five years after the first installment, with Chris Pratt reprising his role as Emmet Brickowski and Elizabeth Banks returning to voice Wyldstyle. The animated film follows the duo on a new adventure as LEGO DUPLO invaders take over and capture Wyldstyle, causing Brickowski to go on a rescue mission to save her.

Other actors lending their voices to what looks like another hit for Warner Bros. include Will Arnett (reprising his role as Batman), Alison Brie, Tiffany Haddish, Channing Tatum, and Jonah Hill.

And if a transforming cars from space and talking Legos aren't enough fantasy for you, "Lord of the Rings" director Peter Jackson will unleash "Mortal Engines" on the world this December as well.

The movie, based on a book series by author Philip Reeve, takes place thousands of years after civilization was destroyed by a cataclysmic event, which forced humans to find a new way of living in motorized cities. Newcomer Robert Sheehan plays a young man fighting for survival in "the great traction city of London" who teams up with a cunning female fugitive (Hera Hilmar) to take down a mad man (Hugo Weaving) with a powerful weapon that can wipe out entire cities.

It looks like a big, expensive, fantastical box office bomb, to be honest. But hey, maybe we're wrong and it's the next great YA franchise.

Watch the the trailer below to decide for yourself.

"Bumblebee" drives into theaters December 21, 2018. "Lego Movie 2: The Second Part" arrives February 8, 2019. "Mortal Engines" drops on December 14, 2018.