Isabelle Allen features as the young Cosette, the daughter of consumptive prostitute Fantine (Anne Hathaway). Cosette's older incarnation will be played by Amanda Seyfried.
The King's Speech helmer Tom Hooper is directing the big-screen musical adaptation, which also stars Hugh Jackman as Jean Valjean, Russell Crowe as Javert, Samantha Barks as Éponine and Helena Bonham Carter as Madame Thénardier.
Jackman recently described the film as "immediate and real".
The first trailer for Les Misérables was released earlier this year, and featured Hathaway's rendition of iconic song 'I Dreamed a Dream'.
Les Misérables will be released on December 25 in the US and January 11 in the UK.
Watch the trailer below: