Vampire identification Guide:

Daybreakers has an interesting premise. A plague quickly turns most of the population into vampires. The population quickly adapts, and society continues with the vampires living their lives at night. The few human survivors are hunted down and placed in blood farms.

Sam Neill plays Charles Bromley, a Elon Musk type CEO, who runs a company that sells human blood. But the dwindling human population is creating a blood shortage. If the vampires go too long without blood, the devolve into feral nosferatu type creatures referred to by the unimaginative name subsiders. These creatures transform into human side bat!

Ethan Hawke plays Edward Dalton, ahematologist, who works for Bromley. He’s trying to find an effective blood substitute but without luck.

There’s a fun but gory sequence where a test subject receives an injection of the a blood substitute but he soon develops horrible boils and explodes.

I won’t describe the entire plot, but Ethan Hawkes meets a group of human resistant fighter. Their leader, played by Willem Defoe accidentally discovered a cure for vampirism. Maybe the worse idea of the movie is to name Dafoe’s character “Elvis”.