This two hour long Documentary narrates the travel Hayao Miyazaki did to the US when he was promoting the release of his latest film Sen to Chihiro no Kamikakushi (千と千尋の神隠し) known in the US as Spirited Away. 

In it, Miyazaki visits John Lasseter, the American filmmaker he met back in 1987 and whose friendship has grown over the years. Lasseter who founded Pixar by that time, stablished a great relationship with Miyazaki, what led to the recent deal between Ghibli and Disney, owner of Pixar since 2006, to release Studio Ghibli films in America. 

The whole film was created on the first hand as a thank letter to Lasseter, hence the title, and was originally a video made just as a personal gift to him, but later, Studio Ghibli decided to release it commercially on DVD under their label:  'Ghibli Ga Ippai Collection Special'