Little Twins: Bokura no Natsu ga Tondeiku
How Our Summer Flew Past ／ Tiffel & Taffel ／ Tiffel & Tuffel ／ Tiffel and Taffel ／ Tiffel and Tuffel ／ リトルツインズ ぼくらの夏が飛んでいく
Description
The length and quality suggests this movie was the fourth video installment, dumped on theaters as a promotional exercise for the tapes. (Source: The Anime Encyclopedia)