Twenty years after it enchanted and horrified audiences at the Cannes Film Festival, one of director Guillermo del Toro's greatest films is returning to the French Riviera for a second bow.

The film broke records when it debuted there in 2006, and now it's coming back in an all-new 4K restoration, painstakingly supervised by del Toro himself. It will kick off the festival with a screening on May 12.

According to reports, Pan's Labyrinth will headline the Cannes Classics showcase of classic films at Cannes this year.

The film made its international debut at Cannes in 2006; there, it earned a 22-minute-long standing ovation, which is still the longest ovation in Cannes history.

Other notable films being screened at Cannes Classics this year include Akira Kurosawa's debut feature, Sugata Sanshiro; Chen Kaige’s 1993 classic Farewell My Concubine; Ken Russell’s long-unavailable horror film The Devils; and Orson Welles' post-war thriller The Stranger.

It will also see the debut of several new film-making documentaries, including Dernsie: The Amazing Life of Bruce Dern, Maverick: The Epic Adventures of David Lean (which features narration by Cate Blanchett and Kenneth Branagh), and the latest chapter in Mark Cousins' history of non-fiction film, The Story of Documentary Film (The 70s).

Set in fascist-controlled Spain in 1944, Pan's Labyrinth centers around young Ofelia (Ivana Baquero); her new stepfather is Captain Vidal (Sergi López), a devotee of General Franco's, and her mother (Ariadna Gil) is pregnant with his son.

Vidal is attempting to root out the local Maquis insurgents, unaware that his housekeeper, Mercedes (María Verdú) is in league with them.

Meanwhile, Ofelia discovers a fantastical underworld where she meets the monstrous Faun (Doug Jones), who believes she is the reincarnation of the lost Princess Moanna. She must undergo three trials to prove her worthiness to rule once more.

During the course of those tasks, she encounters a variety of bizarre creatures, none more horrific than the child-eating Pale Man (Jones again). However, the horrors of the real world threaten to collide with her fantasies.

The film was a hit with critics and audiences upon its initial release, and will be getting a theatrical re-release this fall.

This year's Cannes Classics program is dedicated to late art director and production designer Dean Tavoularis, who died in France last month.

A frequent collaborator with Francis Ford Coppola, he worked on The Godfather and its sequels, The Conversation, and Apocalypse Now; he also contributed to Bonnie and Clyde, Zabriskie Point, and The Ninth Gate.