Halloween: H20 (1998)

Continuity: When Jamie Lee Curtis is teaching a class, just prior to the class trip, a shot over her shoulder shows on the blackboard 'W.B. Yates'. It should be spelled 'Yeats'. In a shot a few seconds later the spelling has been corrected.

Continuity: In one scene, Jamie Lee Curtis takes a bottle of something out of the fridge, removes the top of the bottle and takes a drink, then hands the bottle over to her new boyfriend, he also takes the top off the bottle, even though it was never replaced - Jamie Lee Curtis can be seen playing with the top in her hands.

Continuity: When Jamie Lee Curtis goes back into the school with the axe and Michael Myers is hanging on to the pipe you can see she has a cut on her arm. When Michael comes down he stabs her in the spot where the cut was - you can clearly see it has disappeared.

The trivia and in jokes abound in this film. Firstly, you have Janet Leigh (Jamie Lee Curtis' mother) playing Norma (reference to Psycho) and complaining that the "showers are blocked again" (second reference to Psycho). In her last scene in the film, Janet Leigh is about to get into and drive away in the same car that she used in Psycho.

Late in the film, before Laurie/Keri goes back inside to battle Michael alone, she tells John and Molly to "drive down the street to the Becker's". This is a reference to "Scream," in which Casey Becker's father told her mother to go "down the street to the Makenzie's", a line included in the original Halloween.

Not a mistake, just something to notice: When the guidance counselor is checking on Molly and Sarah, they are watching Scream 2, the scene where Cici (Sarah Michelle Gellar) gets killed. As he enters the room and says their names, watch the TV. As he says "Sarah", Sarah Michelle Gellar turns around.