The photo of the boat that Chuck hands to Casey changes from one shot to the next.
On the boat, the man walking through drops a used folded $100 on the floor, which Chuck picks up. When he looks at it, it is crisp, unfolded. After the flash it is clean and new like it has been ironed. The serial number on the bill is also completely different between the shots.
When making arrangements for the date to the charity event, Sarah tells Chuck to meet at her place. After the event, Sarah drops Chuck off and drives away. If Chuck drove to Sarah's, she should have been taking him back to her place so he could pick up his car and she would have parked to go inside her home.
Casey says that his LTD Crown Victoria is a 1985 model with a 4.6 V8 and a Hydraglide transmission. First, the Crown Vic shown is a 1988 to 91 model with different grill and taillights. Second, Crown Vics of this vintage would have had a 5.0 or 5.8 liter engine, the 4.6 didn't arrive in Crown Vics until the redesign in 1992. Also Hydra-Glide was a Harley Davidson motorcycle model, not a transmission. Hydramatic is a GM transmission line, but Crown Vics had the ubiquitous AOD transmission.
Before the car is hit by the missile it is apparent that all glass has already been removed from the windows.
When Casey is talking about a 'payment plan' to Chuck at the roulette table, the video has obviously been reversed. He hands the chips over the table to the left when Chuck was to the right, his shirt/vest buttons overlay the other way, the scar on Casey's left cheek is now on the right cheek and the flower arrangement behind him has moved.
When Kirk and his crewman are loading the rocket launcher (actually a Carl-Gustaf M3 Medium Anti-Armor Weapon System 84mm recoilless rifle), the warhead of the round is painted blue. That denotes an inert/training round, rather than a live warhead.
Chuck is looking through photos on his iPhone and is sent an incoming picture message. At the time of the episode iPhones did not have the ability to receive picture messages.