About 20 minutes in, Dexter drops his Ford Escape off at Sam's "Good Shepherd" workshop. The SUV is to be repaired due to a crash previously sustained. However, when he is driving the newly repaired SUV at around 47:30 minutes, it is a completely different Escape. The regular factory stereo is now a navigation screen.
When Dexter leaves the press conference that was run by Deb to go to the hospital to attend to his son, Deb is already at the hospital.
During the baptism scene the water level in relation to Brother Sam and Nick changes between shots.
At the beginning of the beach scene where Dexter and Brother Sam chat, Sam walks over to join Dexter under the beach umbrella. While he's standing there, two extras - one in a very bright, very short yellow sundress with a fruit print, the other in a pink bikini - walk past right to left behind them down towards the water. The next shot is a brief close-up on Sam for maybe 5 seconds as he speaks, then we cut to see Dexter's reaction. The two extras are now behind Dexter, Sundress just standing there, Pink Bikini walking away to the right along the beach. A few moments of chat and a couple of shots later, Pink Bikini is now sitting to the right on a towel with her back to Dexter, next to another girl. A few moments later, and she's walking past to the right behind Dexter again down towards where she's just been sitting, while Sundress has disappeared. Almost immediately afterwards, in a medium shot, Dexter gets a message to go into work, says "Gotta go. Work." and Pink Bikini is now walking back behind him to the left with a blue cup in her hand. Cut to the close-up as he immediately calls to Harrison to go, and the girl is suddenly now someone else entirely in a striped bikini but in the same place with the same cup in the same hand, and walking in the same direction.
Miami Metro Police get a call about a crime in Coral Gables. However, Coral Gables is a separate city with its own police force. Miami-Dade police have no jurisdiction here.
Harrison is seen recovering in a regular hospital bed after his surgery. A child his age would be in a crib bed.
The detectives refer to the "University of Tallahassee." There is, of course, no such university. Florida State University is located in Tallahassee, as is Florida A&M University.
When Dexter has just finished finding the second piece of paper in the intestines, Jamie calls him to tell him Harrison isn't feeling well, and he is holding his phone upside down.
When Dexter goes from the hospital to the crime scene, someone with sunglasses on can be seen when looking in the rear-view mirror.
When Dexter is supposedly driving to Coral Gables, he is heading across a causeway toward Miami Beach, which is the opposite way from Coral Gables.