The film is based on Keenan's memoir, An Evil Cradling and Some Other Rainbow by John McCarthy who was a screenplay consultant. The film received widespread critical acclaim, being nominated for six awards, and winning a BAFTA.
The movie is inspired by the memoirs of Keenan, "An Evil Cradling and Some Other Rainbow," written by John McCarthy, who served as a script consultant.  It garnered significant critical praise, earning six award nominations and ultimately securing a BAFTA win.