The Last Dinosaur (Japanese: 極底探険船ポーラーボーラ, Hepburn: Kyokutei Tankensen Pōrābōra, lit. 'Polar Probe Ship: Polar Borer') is a 1977 Japanese/American tokusatsu co-production, co-directed by Alexander Grasshoff and Tsununobu Kotani (the latter billed as Tom Kotani), and co-produced by Japan's Tsuburaya Productions and Rankin/Bass Productions. The picture was filmed at Tsuburaya Studios in Tokyo and on location in the Japanese Alps. The film was intended for a U.S. theatrical release, but failed to find a distributor and ended up as a television film, airing on ABC on February 11, 1977 in an edited 92-minute run time. The film was eventually picked up for overseas markets by Cinema International Corporation, where it was released in the unedited 106-minute version as a double feature in the U.K