Jill Forbes (1947 - 2001, Curriculum Vitae, Obituary).
Les Enfants Du Paradis.
London: British Film Institute, 1997.
(Series: BFI Film Classics)

The Film: Les Enfants du Paradis (Children of Paradise), 1945
IMDB.
Rotten Tomatoes.
Criterion Collection DVD edition, essays.
Amazon.com information on the DVD with reviews.
DVDBeaver.com see Criterion Spine # 141 for film reviews and technical reviews of the Criterion DVD.
Roger Ebert's Great Movies (Frankly, I'm not a big fan of Ebert's reviews, although as a novice to film art I found him very instructive. At the time when I first read this particular review it contained at least one dumb typo and one glaring error.).
Les Enfants du Paradis by Girish Shambu, Review at Senses of Cinema.
MovieMartyr.com.
Films de France.
Film Review by Jim Richardson.

Marcel Carné: (director)
IMDB.
Criterion Focus: Marcel Carné, Essays, Interview, Filmography, Bibliography.
The Boston French Center: Marcel Carné Archive.
They Shoot Pictures, Don't They?.
Child of Paradise: Marcel Carne and the Golden Age of French Cinema by Edward Baron Turk, Harvard University Press, 1989.

Jacques Prévert: (writer)
IMDB.
Homage to Jacques Prévert.
In addition to his screenwriting work, Jacques Prévert was a prominant poet, so there are many websites devoted to his work but most are in French and I cannot judge what to include here. From what I have read it seems that Carné & Prévert formed one of those film collaborations that may be in the same league as Powell & Pressburger, Kurosawa & Mifune, Bergman & Nykvist, Herzog & Kinski, and Joel & Ethan Coen (yes, perhaps the Coen brothers are that good).

Arletty: (actress, Garance)
IMDB.
Cinema and the Female Star.
Films de France -> Actors -> Arletty.

Jean-Louis Barrault: (actor, Baptiste)
IMDB.
Book Review by Ian McKellen of Memories for Tomorrow: The Memoirs of Jean-Louis Barrault.