Continuity mistake: When Diana spins around, the computers are on. When she transforms herself into Wonder Woman, they're off.
The Richest Man in the World - S3-E17
Continuity mistake: Henshaw tells Barney he owes him 50 bucks, both arms lowered. A shot later, his left arm is raised and he is touching his nape. (00:10:09)
The Richest Man in the World - S3-E17
Revealing mistake: When Wonder Woman pushes the gunman off the beam, he falls on a very evident crash mat covered with a black canvas.
The Richest Man in the World - S3-E17
Continuity mistake: When Henshaw's car crashes against the crates, there's one which falls on top of the boot. The next time we see it, it's on the ground. If it fell down in between shots, a thump had to be heard.
The Richest Man in the World - S3-E17
Continuity mistake: When the car is about to crash against the vegetable stand, the windows are rolled down. During the crash, they're up. When the car stops, they're down again.
The Richest Man in the World - S3-E17
Revealing mistake: During the chase, when the car overtakes a red car, Henshaw's stunt is noticeable because of his bulky wig.
The Richest Man in the World - S3-E17
Revealing mistake: During the car chase scene, skid marks from previous shots are everywhere. (00:32:13)
The Richest Man in the World - S3-E17
Revealing mistake: When Henshaw and Barney's chase starts, there's a shot inside the car where it's painfully obvious that the car is not moving at all. Check how the reflections on the hood are perfectly still, for example. (00:32:08)
The Richest Man in the World - S3-E17
Continuity mistake: The way Barney holds the keys changes between instant cuts.
The Richest Man in the World - S3-E17
Revealing mistake: When Wonder Woman is chasing the guy at the factory, their stunt doubles are noticeable.
The Richest Man in the World - S3-E17
Other mistake: When Wonder Woman chases the guy in the factory, all of the scenes of her jumping plus the last scene of the guy running away and her jumping on top of him are reused from S2E17.
Revealing mistake: Wonder Woman is in a control room with walls and a hard floor, but when she starts jumping around to avoid the lethal red light, the walls and floor swap to wrinkled and bending inwards, revealing it's a room covered with safety mats.
The Richest Man in the World - S3-E17
Visible crew/equipment: Stage lights are reflected on the hotel's revolving doors throughout the episode.
The Richest Man in the World - S3-E17
Plot hole: Wonder Woman finds a bomb under the van by just casually kneeling down and grabbing it. She had no knowledge at all about the bomb.
The Richest Man in the World - S3-E17
Revealing mistake: Skid marks from previous takes are on the dirt next to the cliff where the van heads to.
The Richest Man in the World - S3-E17
Continuity mistake: When Wonder Woman chases the van, there's a fence which disappears and reappears on certain tracks of the road, but whenever the shot is on her, the fence is always there.
The Richest Man in the World - S3-E17
Continuity mistake: When Diana stops her car, a blue car parked in front is reflected on the door, but disappears in the opposite shots.
The Richest Man in the World - S3-E17
Continuity mistake: Barney signals with his right hand where he lives, but a shot later he uses his left hand.
The Richest Man in the World - S3-E17
Continuity mistake: The bowl where the dog eats from gets suddenly refilled between shots.
The Richest Man in the World - S3-E17
Continuity mistake: The ambulance where kidnapped Henshaw drives past the same building twice.
Answer: Yes, on the first episode of season 2, she is shown on the island, when another plane crash lands, she says, "They sound different from WW II". Later in the same episode a woman gathers background information on Wonder Woman. The woman says, "From 1942 to 1945, she helped the Allies win the war."