Name	Known for
Ian McKellen Narrator (voice) Narrator (voice) See fewer	The Lord of the Rings: The Fellowship of the Ring (2001)
Roberto Alagna Self - interviewed Self - interviewed See fewer	A Midsummer Night's Dream (1999)
Andrea Bocelli Self Self See fewer	The Nutcracker and the Four Realms (2018)
Bono Self Self See fewer	Across the Universe (2007)
Michael Caine Self Self See fewer	The Dark Knight (2008)
José Carreras Self Self See fewer	Bats (1999)
Enrico Caruso Self (archive footage) Self (archive footage) See fewer	Match Point (2005)
Eric Clapton Self Self See fewer	Lethal Weapon (1987)
Giuseppe Di Stefano Self (archive footage) Self (archive footage) See fewer	22 Bullets (2010)
Plácido Domingo Self Self See fewer	The Book of Life (2014)
Benjamin Gigli Self (archive footage) Self (archive footage) See fewer	Piluk, the Timid One (1968)
Dustin Hoffman Self Self See fewer	Tootsie (1982)
Mario Lanza Self (archive footage) Self (archive footage) See fewer	For the First Time (1959)
Ricky Martin Self Self See fewer	Ricky Martin: MTV Unplugged (2006)
Brian May Self Self See fewer	Flash Gordon (1980)
Liza Minnelli Self Self See fewer	Cabaret (1972)
Fernando Pavarotti Self - duet with son (archive footage) Self - duet with son (archive footage) See fewer	La Bohème (1986)
Luciano Pavarotti Self Self See fewer	Yes, Giorgio (1982)
Lionel Richie Self Self See fewer	The Color Purple (1985)
Tito Schipa Self (archive footage) Self (archive footage) See fewer	I Sing for You Alone (1933)