Continuity mistake: After the scene where he gets hit in the head and he travels into the future 800000 years, he has that gross stuff and blood on his mouth. In the next shot you only see the blood.
The Time Machine (2002)
21 mistakes - chronological order
Directed by: Simon Wells
Starring: Jeremy Irons, Guy Pearce, Orlando Jones, Mark Addy, Phyllida Law, Samantha Mumba, Yancey Arias
Uber-Morlock: You built your time machine because of Emma's death. If she had lived, it would never have existed. So how could you use your machine to go back to save her?
Trivia: Lovers of the 1960 version of the movie will know that Alan Young, who made a brief appearance as the flower store owner in this film, portrayed both David Filby and his son James in the original.
Answer: When Alexander is travelling through time, he sees everything in his lab being removed very quickly, so the equations on his board were most likely erased and his journals were probably thrown away.