Continuity mistake: At the junkyard, Freddy tosses the golden apple at Shazam, who then stands behind a car, by the driver's side. A shot later, he's suddenly three meters to the right of the car.
Continuity mistake: When Darla arrives home with the kitten, the position of her left hand differs between the close-up and the following shot.
Continuity mistake: When Mary is bringing people safely on the bridge, not only are they not continuous between shots, but a paramedic suddenly appears behind the ambulance on the right.
Continuity mistake: During the bridge scene, the woman holding the basket with kittens has a seatbelt running across her chest. In the close-up it's gone.
Continuity mistake: Before Super Hero Darla arrives at the yellow car, the co-pilot is looking behind her. An instant cut later, she is looking ahead.
Continuity mistake: On the bridge, when Super Hero Darla saves the kittens, on the first shot there are three kittens. A black one with blue eyes and white fur inside his big pointy ears is meowing. A shot later, the two brown kittens have vanished, the black kitten has turned 90ยบ (note the handles of the basket), plus - drum roll - it's a totally different kitten: grey eyes, smaller ears, and full black fur in his ears.
Continuity mistake: When Billy's mum tells him she loves him, she places both hands around his face. Then lowers them and places her right hand on his cheek. From the opposite angle her hand is gone.
Continuity mistake: When Freddie confronts the dragon, he puts his hand on Anthea's back. A shot later, his arm is surrounding her neck, and his hand is resting on her chest.
Continuity mistake: Before Shazam resuscitates Hespera, the way her hair lies on the ground changes between shots. Also, an object behind (a strap or similar) also changes shape and distance between shots.
Continuity mistake: When Shazam finds Hespera on the rooftop, her sword lies pointing in a 3 o'clock direction. A shot later, it points in a 4 o'clock direction.
Continuity mistake: When Darla tosses candies at the unicorn, Mary holds the upper part of her left arm. A shot later, her grip is slightly below. This swaps back and forth depending on the shot.
Continuity mistake: When Anthea is launched backwards, she lands sideways with both arms next to each other. A shot later, she is slightly facing down, with her body hiding her right arm.
Continuity mistake: After Freddie and Anthea kiss, his hand is around her neck. Shot cuts and his hand is away.
Continuity mistake: Shazam says, "Maybe Pedro sucks at dodgeball," with his left arm lowered next to the armrest. A shot later, his arm is raised and bent.
Continuity mistake: When Mary reads the Book of Powers, there's a close-up where one can see another book right next to the one she's reading. A shot later, that book is further away.
Continuity mistake: When Mary reads all the powers there are, she places her right hand on a page on the right. An instant shot later, it's on the opposite page.
Continuity mistake: When Mary is in the lair sitting on the floor, in the angle shot from behind her cape lies messily. On the frontal angle it lies neatly.
Continuity mistake: Shazam lifts up Hespera and smashes her unconscious against the floor. When she lands, her arms point downwards in a 4 and 8 o'clock position. A shot later, they're pointing upwards and are V-shaped.
Continuity mistake: Shazam dives Hespera in a hole underground. Then she kicks his ass and he falls backwards. When he lands, his cape is all messed up over his tummy. A shot later, the cape is away.
Continuity mistake: When Freddy is hit by the football and falls down, the position of his crutch changes between shots.
Answer: The dinner scene, where Wonder Woman has the head of the Wizard, never happened. There's no indication they knew each other, let alone were friends. In the realm where superheroes actually do exist, there'd really be no reason why she, Superman, who is supposed to know them too, or any other hero wouldn't be there to help. So the only answer would be an unsatisfactory one that sounds pedantic: she didn't help because it's a Shazam movie and not a WW or JL movie. One could say that she and the other heroes were busy with fighting crime/battles in their own city or they didn't know they needed help. She only appears at the end, it seems, to restore the god realm. It's also been said they didn't think Gal Gadot would be available to shoot her cameo scene, so Wonder Woman may not have been in the film because of a scheduling conflict. But to me, if she was meant to be in the film, they would have secured her availability long before shooting.
Bishop73