According to Anime News Network, Gatchaman was first broadcast in Japan in 1972. In 1978 it reached the US under the title: Battle of the Planets. It would reach the US again in the 1986 under the title: G-Force: Guardians of Space.
The plot for the original anime is as follows (from Anime News Network):
A new threat appears all over the world in the form of the terrorist group known as the Galactor. To combat the forces of Galactor, well-renowned scientist Kouzaburou Nanbu unleashes the Science Ninja Team Gatchaman, a team of five young heroes skilled in the art of ninjutsu and dressed in unique bird-like costumes.
Orends: Range has the details on the cast:
The movie stars Tori Matsuzaka (Samurai Sentai Shinkenger) as Ken the Eagle, Go Ayano (Kamen Rider 555, Rurouni Kenshin) as Joe the Condor, Ayame Goriki (Mirai Nikki, Black Butler) as Jun the Swan, Tatsuomi Hamada (Ultraman Zero, Gokaiger vs. Gavan) as Jinpei the Swallow and Ryohei Suzuki (Hentai Kamen) as Ryu the Owl.
The movie will be directed by Toya Sato (live-action Grave of the Fireflies, Gokusen), Yusuke Watanabe (Gantz, Dragon Ball Z: Battle of Gods) will write the script and Shinji Aramaki (Appleseed) in-charge with the character designs.
The film is out August 24th in Japan.
Check out the opening for the original Gatchaman show.
Character photos from the Gatchaman movie website:
SOURCE: Ukitaros Youtube Channel, Official Gatchaman Movie Website, Anime News Network