After one viral video in 2020, Nigerian Anthony Madu went from pirouetting on the dusty streets of Lagos to dancing in the corridors of a prestigious British dance school.Madu’s extraordinary story, which has seen him become a celebrity and even receive a handshake from Queen Camila, has been documented for the silver screen and was to be released on Disney+ on Friday.The documentary follows the teenager over a year, between 2021 and 2022, when he leaves Nigeria for Birmingham’s Elmhurst Ballet School.”I really feel really proud of myself, but it’s also surreal at the same time to see…