The Raven is period piece fun - at least until it realizes there has to be a conclusion. That's where a certain amount of inevitable disappointment sets in. The curse of the two-hour murder mystery is that the ending never seems to justify the build-up.

It runs out of steam in the final 10 minutes, but there's some gruesome drama and Cusack is on decent form.

Poe was a flawed figure, but his greatest strength was in avoiding convention, or reinterpreting it to create something new. The Raven aspires to both, but abandons those ambitions to lie limply on the floor - only this, and nothing more.

The Raven isn't nearly as much fun as it should be.

When I heard that John Cusack had been cast for this film, it sounded like good news: I could imagine him as Poe, tortured and brilliant, lashing out at a cruel world. But that isn't the historical Poe the movie has in mind. It is a melodramatic Poe, calling for the gifts of Nicolas Cage.