There’s a new “Lord of the Rings” movie set to debut next week … and some of the franchise’s brightest stars reunited at the premiere to support the upcoming project.

Check it out … Cate Blanchett showed up at Odeon Luxe Leicester Square Tuesday evening for the London premiere of “The Lord of the Rings: The War of the Rohirrim” — a new animated movie that takes place nearly 200 years before the events of ‘Fellowship of the Ring.’

Unsurprisingly, Cate dressed to impress for the industry event, rocking a dark top with an extremely deep-V neckline, an oversized gray blazer and matching slacks. The actress — who played elf Galadriel in all three of Peter Jackson‘s ‘LOTR’ movies — rounded out her look with a chunky gold necklace, a number of earrings, and a chic bob.

Speaking of Peter, the famed director was also in attendance at the London premiere … taking a moment to mingle with fans ahead of the highly anticipated screening.

Of course, there were several other franchise fan-favorites in attendance Tuesday night … Sir Ian McKellen, who played the wizard Gandalf, showed up in a long black trench coat and wide-brim hat for the event.

Dominic Monaghan and Billy Boyd, who played hobbit besties Merry and Pippin in the OG trilogy, delighted fans by posing together at the premiere … proving they’re still BFFs all these years later.

Yet, the night wasn’t solely about the ‘LOTR’ OGs, as plenty of the new film’s stars turned up for the occasion … including Benjamin Wainwright, who posed alongside actress Phoebe Sparrow.