Millions of years ago, a giant three-headed dragon called Desghidorah arrives on Earth and wars with a species of enormous and highly advanced moths. The moths were the protectors of the "Elias", a race of tiny, humanoid beings who inhabited the planet. After the ensuing battle, Desghidorah was defeated and sealed under the Earth - at the cost of almost all life on Earth.
Only three Elias - Moll, Laura and Belvera - and one last moth - Mothra - remained. To preserve her species, Mothra created an egg in 1996; however, she became physically exhausted from the ordeal. Shortly thereafter, a logging company uncovered the subterranean prison of the demonic space beast that had ravaged the Earth so long ago. When the seal that had bound the creature was removed from the area, one of the workers of the company took it home and gave it to his young daughter, Wakaba, as a souvenir. Seizing the advantage, Belvera controls Wakaba and uses her to torment her brother Taiki, reminding Belvera of her hatred towards her sisters.
Moll and Lora, riding a smaller Mothra named Fairy, then fought Belvera for control of the artifact.
Drawing upon the power of life that filled his very being, Leo restored the balance to a blasted region that was deforested during the assault of Desghidorah. His work done for the time being, Leo went to his ancestral home and planet Earth was once again safe from Desghidorah. Moll and Lora thanked the children for helping them on their journey and returned home to Infant Island with their pet, Fairy, as Belvera, still vengeful, escaped into a hole in a tree.
- Sayaka Yamaguchi – Lora
- Megumi Kobayashi – Moll
- Aki Hano – Belvera
- Kazuki Futami – Taiki Goto
- Maya Fujisawa – Wakaba Goto
- Kenjiro Nashimoto – Mr. Goto
- Hitomi Takahashi – Mrs. Goto
- Mizuho Yoshida – DesGhidorah
Rebirth of Mothra was released in Japan on December 14, 1996 where it was distributed by Toho. By January 1997, Rebirth of Mothra grossed 1.15 billion yen in Japan. It was followed up with a sequel the following year with Rebirth of Mothra II.
Rebirth of Mothra was released directly to video in the United States. It was released with an English dub by Columbia/Tri Star Home Video on August 3, 1999. It was released on DVD on February 1, 2000 as a double feature with Rebirth of Mothra II. Both films were only available with an English-dub. A triple feature of all three Rebirth of Mothra films was released on blu-ray by Sony on September 9, 2014 with both the Japanese and English voice tracks.
- Directed by Okihiro Yoneda
- Written by Masumi Suetani, Tomoyuki Tanaka
- Produced by Hiroaki Kitayama, Shogo Tomiyama
- Music by Toshiyuki Watanabe
- Cinematography by Yoshinori Sekiguchi
- Edited by Nobuo Ogawa
- Production Design by Kyoko Heya
- Assistant Directing by Kunio Miyoshi
- Special Effects by Koichi Kawakita, Kenji Suzuki