Since this is a thriller, there must be a twist. One goes into a movie like The Number 23 with this expectation. However, not only is the twist telegraphed early but it is presented in a clumsy and unconvincing manner. Other films have employed a similar plot device to good effect. (I will refrain from naming titles since that would constitute unnecessary spoilerage.) The Number 23 shows how not to do it. The film has a few things going for it. Matthew Libatique's cinematography is evocative and there are isolated individual scenes that work when dissociated from the movie as a whole. But as a cohesive piece of entertainment, The Number 23 is largely a failure.
See reelviews.net for full review