In February 2008, Wilson asked Barrelhouse Chuck to assist in recording the soundtrack for the film, Cadillac Records.
The soundtrack features covers of classic songs from Chess Records' singers as performed by the film's stars including Golden Globe nominated actress and 16-time Grammy Award winning singer Beyoncé Knowles (as Etta James), Eamonn Walker (as Howlin' Wolf) and Jeffrey Wright (as Muddy Waters).
"Forty Days and Forty Nights" has been recorded by various blues and other artists, including Steppenwolf from Steppenwolf 7, John Hammond, Jr., Eric Burdon from his Soul of a Man album, and Buddy Guy for the Cadillac Records soundtrack.
In 2009, he was nominated for a Golden Globe as co-writer of "Once in a Lifetime", sung by Beyonce for the film, Cadillac Records.
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Flint has appeared in several feature films including Cadillac Records with Adrien Brody, and The Women, alongside stars Meg Ryan, Annette Bening, Eva Mendes and Debra Messing.