Imagine clocks stop in time, happily amazed at that time when we were kids, that time of our lives where every second, every decision, every meeting becomes an experience capable of making us change. Imagine, like children, to travel through time, from the 1960s to the present, and experience small adventures that will remain etched in memory, like the smell of an object, the taste of a sweet, the color of a memory. Imagine being children and have the possibility to still be one. 'Once I Will Be Child' is an episodic film told through the eyes of protagonists between 7 and 14 years. The film goes through six decades (1958, 1960, 1978, 1984, 2007, today) and, inspired by the 'children's movies' that marked the fantasy and the cinema of the ' 80 (from 'E.T.' in 'the Goonies' up to 'Honey, I shrunk the kids!'), outlines an amused tribute to various film genres (ranging from science fiction, to yellow, to the tale of training).