Continuity mistake: Jackie Chan traps the queen water strider in a glass against Jennifer Love Hewitt's face. Then they are fighting the bad guys, but a long shot shows Jackie spin Jennifer around to knock over several of the baddies and there is no way he could be holding the glass to her face. In the next close up the insect is still in the glass held against Jennifer.
Continuity mistake: Del's dress is completely different from the beginning of the party, not just her shoes. At the beginning of the party, the dress bodice is straight across. After getting into the lab, the bodice is a heart shape, showing cleavage.