Asif Kapadia's documentary 'Amy' "missed a trick" by focusing on drug addiction, says Winehouse
Jess Glynne, Foxes and Ella Henderson will also become Ambassadors for the Foundation
'Amy' features music from Winehouse as well as composer Antonio Pinto
Producer made the claims at the New Yorker festival on Saturday
'Amy' was released in UK cinemas during July and comes out on DVD in November
Late singer visits New York in previously unseen footage
The scheme offers to help young musicians to overcome personal obstacles and 'produce extraordinary music'
Late singer's father was talking to Australian TV show 'Weekend Sunrise' about the movie 'AMY'
'Amy' was released in July and directed by Asif Kapadia
The Amy Winehouse Foundation was launched in 2011 following the singer's death