Visible crew/equipment: When Wonder Woman is in the kitchen with the children telling them they should take care of themselves, a crew member's back is visible at the left side of the screen.
Visible crew/equipment: When Wonder Woman arrives at the Diamond H ranch, the housekeeper opens the front door and the reflection of lighting/equipment is visible on the glass. Additionally, there's a prominent flagpole at the front of the house with the Flag of Texas flying high, but the problem is it's being flown upside-down with the red stripe at the top, when it should be the white stripe at the top. Proud Texan JP Hadley would know better.
Visible crew/equipment: After Wonder Woman cautions JP about Lampkin, when JP tells the kids about Maria's apple pie note the open cabinet door over JP's shoulder, presumably to prevent reflections. After Jeff admits to being Lampkin's informer, when JP walks over to Jeff that cabinet door is closed and now we can see the reflections of array lighting/equipment (then when WW walks over both doors are ajar).
Visible crew/equipment: After the children rescue Wonder Woman it cuts to her telling JP and Jeff about it, and when JP tells the kids about Maria's hot apple pie, the actor's tape mark is visible on the rug where Charlie had been standing.
Wonder Woman in Hollywood - S1-E14
Visible crew/equipment: When Drusilla spins into Wonder Girl at the coffee shop, in the next shot as she says, "Excuse me," the actor's T-mark is visible on the floor where she stands.
Wonder Woman in Hollywood - S1-E14
Visible crew/equipment: When Wonder Woman and Wonder Girl find Bremer's hold on stage 12, just as they walk inside Bremer's fake stateroom their two T-marks are visible on the floor, under the table.
The Feminum Mystique: Part 1 - S1-E5
Visible crew/equipment: While General Blankenship is driving in the car with Drusilla he gets cut off by Captain Radl's car, and just as the two Nazis get out of their car the reflection of the boom arm/mic is visible on the roof of their vehicle.
The Feminum Mystique: Part 2 - S1-E6
Revealing mistake: When one of the Nazis brings Drusilla a hot meal while she's being held in the deserted warehouse, in the shot just as she whacks him in the stomach we can see the stunt cable over the Nazi (stunt double) which lifts and pulls him back.
Visible crew/equipment: After Wotan arrives on the beach Wonder Woman sees the other Nazi with a gun, so when she leaps into the air and lands in front of Steve we can see crew/equipment at the left side of the screen (widescreen version).
Wonder Woman vs Gargantua - S1-E7
Continuity mistake: After the Nazis capture Steigler, while they're at the oil refinery Gargantua is in a cage behind them, and when Erica blows the whistle the gorilla reaches through the bars and grabs a large cardboard cutout of Wonder Woman, which was leaning against the wall, but the problem is that in the previous shots that cardboard cutout was not there.
The Feminum Mystique: Part 1 - S1-E5
Visible crew/equipment: After General Blankenship is shoved into the back seat of Captain Radl's car, when the front passenger door is opened, we can see the reflections of the cameraman's feet, set lighting, the camera dolly on the surface of the door. Then as the car drives off, more crew members are reflected on the side of the car.
Revealing mistake: When one of Wotan's fellow Nazis in the rubber boat starts shooting toward Steve, in the closeup of Wonder Woman deflecting the bullets, one of the wired remotes that control her bracelets' sparks can be seen in her right hand, and as she starts walking toward the camera we can also see the other remote in her left hand.
The Feminum Mystique: Part 2 - S1-E6
Other mistake: When Captain Radl is parachuting into the water, the episode's onscreen textbox reads, "Elsewhere in the Carribean, a Nazi rendezvous is occuring," but the proper spelling of the words are "Caribbean" and "occurring."
Wonder Woman vs Gargantua - S1-E7
Visible crew/equipment: When Erica and Hans pay a visit to Dr. Osmond, just as Erica walks into the lab and stops in front of Gargantua's cage, the tape mark is visible on the floor in front of her feet (fullscreen version).
The New Original Wonder Woman - S1-E1
Visible crew/equipment: To break the deadlock during the Tournament of Athletic Games, the last event is bullets and bracelets, and when Diana fires and hits her opponent, VIII, the wired remote that controls her bracelet sparks is visible in VIII's right hand.
Wonder Woman vs Gargantua - S1-E7
Continuity mistake: When Wonder Woman arrives at the warehouse where Steigler is being held, as she's using her lasso to scale the building the high heels on her boots have vanished, and they're now flats. This switch also occurs in previous shots, as well as at the start when Erica Belgard is disguised as Wonder Woman.
Answer: The transformation twirling was invented for the 1970s TV series only, to explain her quick change from Diana Prince to Wonder Woman. However, it would have been nice to do a little spin homage in the movie.