For his next movie, Kurosawa chose a subject very different from any that he had ever filmed before. While some of his previous pictures (for example, "Drunken Angel" and "Kagemusha") had included brief dream sequences, "Dreams" was to be entirely based upon the director's own dreams. Significantly, for the first time in over forty years, Kurosawa, for this deeply personal project, wrote the screenplay alone. Although its estimated budget was lower than the films immediately preceding it, Japanese studios were still unwilling to back one of his productions, so Kurosawa turned to another famous American fan, Steven Spielberg, who convinced Warner Bros. to buy the international rights to the completed film. This made it easier for Kurosawa's son, Hisao, as co-producer and soon-to-be head of Kurosawa Production, to negotiate a loan in Japan that would cover the film's production costs. Shooting took more than eight months to complete, and "Dreams" premiered at Cannes in May 1990 to a polite but muted reception, similar to the reaction the picture would generate elsewhere in the world. In 1990, he accepted the Academy Award for Lifetime Achievement. In his acceptance speech, he famously said "I’m a little worried because I don’t feel that I understand cinema yet."