You can still find it on PC, though.
Peter Molyneux's Hollywood simulator, The Movies, was originally announced as a multiplatform release even though it was clearly designed as a PC game. Since Activision was publishing it, "multiplatform" included GameCube, although it would be missing the extensive online features of other versions.
However, a GameCube version was never shown at E3, and along with the other console versions, it may never have been started. Activision's stance throughout 2005 was that they were concentrating on the PC version first. That version was finally released last fall, to good reviews and poor sales.
According to GameSpot, the game's poor performance on PC sealed the fate of the unseen console versions. Activision confirmed in yesterday's financial report that the console adaptations have been canceled.