The brothers also talked about their other, more mysterious sci-fi project, which is currently untitled, though that's not the only thing the brothers are keeping secret.
Peter: We've been writing a script for a year now that's another science-fiction film as well. It's a period film it's set largely in the '40s. We've spent a lot of time researching, just an enormous amountof time. We've almost over-researched, we probably need to put some of the research away and get out of the script for a moment.
Michael: It's taking elements of history and spinning it, or changing it. Or taking elements of history and asking, "what if?" Daybreakers is a what if — what if everybody was a vampire? How would they live? This is very much a "what if" as well, and asks, "What if this didn't happen, and this happens instead?" Ah, that's all I'm saying.