Other mistake: Near the beginning of the film, Carter asks Tom how high the fences are, then he tells them to make them higher, and Scoggs confirmed they were raised, but you can see that the fences never get any higher.
Visible crew/equipment: As Preacher and his parrot are about to go up the stairs to a higher level, you can see a wire attached to the parrot. (00:43:05)
Revealing mistake: As one of the lab crew is showing Tomas Jane the suspended tiger shark you can see a horizontal line in the water in the background. this is the edge of the water tank used to film the exterior scenes (mentioned in DVD extras).
Answer: I assume you are referring to the scene after Susan killed the second shark (she was killed before the third shark was killed). The comments LL makes to finish that scene do seem a little out of place with what they were talking about but the film does have a number of scenes cut out. Most of the deleted scenes on the DVD deal with character development and dialogue but there is no evidence the scene was cut as the DVD's deleted scenes dont have any extra footage on that scene or alternate dialogue.
Lummie