Alisa's Birthday is a 2009 Russian traditionally animated children's science fiction film, directed by Sergey Seryogin and produced by Master-film studio. The film is based on a novella of the same name by Kir Bulychev about Alisa Seleznyova, a teenage girl from the future. It is a spiritual successor to 1981 animated film The Mystery of the Third Planet, from which it draws a heavy influence.