ShowBusiness: The Road to Broadway is an American documentary film, directed by Dori Berinstein, a Broadway Producer, Writer and Filmmaker. Berinstein filmed each principal musical on Broadway for her project during the 2003-2004 season, for about 600 hours of initial film footage. She focused the film on four musicals, through the difficulties of pre-production, their openings, attendant publicity around the shows, and their reviews, through the 2004 Tony Award competition. The four musicals documented for the film were: Wicked, Taboo, Caroline or Change, Avenue Q.
| Actor | Role |
|---|---|
 Kristin ChenowethSelf | Self |
 Alan CummingSelf | Self |
 Stephanie D'AbruzzoSelf | Self |
 Raúl EsparzaSelf | Self |
 Edie FalcoSelf | Self |
 Boy GeorgeSelf | Self |
 Hugh JackmanSelf | Self |
 Nathan LaneSelf | Self |
 John LeguizamoSelf | Self |
 Idina MenzelSelf | Self |
 Sarah Jessica ParkerSelf | Self |
 Carol ChanningSelf | Self |
 Pat KiernanSelf | Self |
 Cyndi LauperSelf | Self |
 LL Cool JSelf | Self |
 Rob MarshallSelf | Self |
 Rosie O'DonnellSelf | Self |
 Renée ZellwegerSelf | Self |
 John LithgowSelf | Self |
 Anika Noni RoseSelf | Self |
 Robert LopezSelf | Self |
 Nicole ByerSelf in Taboo Footage | Self in Taboo Footage |
 Harvey FiersteinSelf | Self |
 Nicole KidmanSelf (uncredited) | Self (uncredited) |
| KKen Robersonself | self |