Corrected entry: Adam, the main vampire, claims he was 5000 years old. Judas was the first vampire as said in the movie and he was born somewhere around the year 0. That's 2000 years ago.
Corrected entry: The movie uses the typical "vampires hate silver" mythos. When Adam opens Jack Bart's coffin, he is clutching Lincoln's silver pocket watch. Either he stole it from Lincoln before his death or Lincoln put it there, but either way, it should have been burning him up since he is a vampire. Also, the watch was given to Lincoln by Henry, another vampire, though Henry possibly could have been wearing gloves to negate the silver.
Corrected entry: Abraham's axe has a gun built into the handle. During the train scene, the main vampire breaks his axe over his knee. This is amazing, due to the fact that the gun barrel inside the axe handle wouldn't have snapped.
Corrected entry: In a flashback, Henry reveals to the audience that vampires cannot kill one another as he attempts to stab Adam multiple times. Adam is seemingly surrounded by an invisible force field. Towards the end of the movie, however, Adam and Henry beat the living daylights out of each other and cause visible damage. Did some magical event take place on the train that allowed vampires to harm each other? We may never know.
Corrected entry: It's commonly accepted that vampires are nocturnal and that sunlight is their natural enemy. However, there is more than one scene in this movie where there are vampires out and about in the light of day. For example, the scene where they are riding on horses among a herd.
Corrected entry: Even accounting for some creative license to allow for Lincoln's secret life as a vampire hunter, the film is littered with historical inaccuracies. Lincoln's mother died in 1818, and the film states his father died nine years later; his father actually died in 1851. William Johnson was about 30 years younger than Lincoln, not his childhood friend. Lincoln's son Willie is killed in retaliation for Lincoln signing the Emancipation Proclamation, which he announced after the Battle of Antietam in September 1862 and took effect Jan. 1, 1863; but Willie actually died in Feb. 1862, almost a year earlier.
Corrected entry: In the train scene, Henry is beat up significantly by Adam. This directly contradicts an earlier scene where Henry could not touch or kill Adam due to the rules regarding vampires; Adam is still able to maim Henry and even bite him.