When Donovan talks to Neely at her tower, her legs are crossed right over left when seen from in front, but left over right when seen from above. Then, her hands suddenly appear on her knee.
When Lani gets off the couch and storms to the door, she passes a female lifeguard as she goes out. In the next shot, there is no one standing near the door.
Donovan fills two champagne glasses for himself and Neely (even though she's just said she doesn't drink.) When he leaves with Lucas and sets them down, they are suddenly empty. When he returns, one is full and the other about half full.
During the cocaine drop, in shots of the boat it is nighttime. However, when it shows Mitch and Garner listening to the transmitter it is daytime.