The saber in the table changes placement.
When Rachel finds the cut on her arm, the producer audibly gags at the effect.
A light reflection from off-screen is visible in the first scene with Rachel.
Two crew members can be briefly seen hiding in the field in the Rainsford flashback.
The Russian hunter was named Ivan and filmed before the film's rewrite, where another character was named Ivan. They discovered later that they had two Ivans, but could not change it that late.