I just finished My Soul to Keep by Davis Bunn (formerly T. Davis Bunn). It was fantastic!
Synopsis: Hollywood movie star Brent Stark has it all, but then loses everything to booze, old baggage, bad judgment, and lack of faith. His climb from the darkness of prison is a harsh departure from the star treatment he used to command. Stark works in local theater, deliberately shunning lead roles. The turning point comes when Bobby Dupree, a southern entrepreneur with a revolutionary idea for film-making, offers Brent the role of a lifetime. But Shari Khan, backed by a giant Hollywood studio and determined to succeed at any cost, makes it her personal mission to destroy Brent’s shoestring production and crush this upstart competition.
He's written other novels that I've enjoyed - The Presence & The Ultimatum. I've enjoyed them most because they illustrate how profoundly God can change your life when you live for Him vs. yourself; what can happen when prayer is a part of your life. I got goosebumps at some places. If you get a chance and you enjoy Christian fiction, give it a read.