There are a few possibilities:
* You may be thinking of a different title. If you can remember any other details about the film (like the genre or a specific scene), that might help me narrow down the search.
* The movie may not have been released in 2008. It could have been released in a different year, or it might be a short film or a production that hasn't been widely distributed.
* You may be thinking of a television show or other media. Perhaps the title you're looking for refers to a TV episode, a play, or something else entirely.
Please provide me with more information, and I'll do my best to help you find the cast you're looking for.