Continuity mistake: The bows in Dorothy's hair are tied differently throughout the scene with Glinda the witch in Munchkinland. (00:19:40 - 00:21:30)
Visible crew/equipment: When Dorothy walks out of her house in Munchkinland, shadows cast by the trees can be seen on the painted hills right behind them. (00:20:20)
Visible crew/equipment: As Dorothy walks out of her house in Munchkinland the camera pans right then comes back again and the light from a spotlight dead center that has been bumped can be seen shaking above the blue brook. (00:20:20)
Continuity mistake: When Dorothy first walks around Munchkinland, the bright ruby slippers are seen sticking out under the right window of the house. Later when the Munchkins come out we see the same spot again and the slippers aren't there. (00:20:40 - 00:23:15)
Continuity mistake: Dorothy walks around Munchkinland and the large lily pads in the pond change positions between shots several times. (00:20:40)
Visible crew/equipment: Dorothy walks around Munchkinland and when we first see the Munchkin's heads popping up the crew's shadow can be seen on the flowers to the right of the screen. (00:20:55)
Continuity mistake: As she holds Toto in her left hand, Dorothy looks around Munchkinland and says, "We must be over the rainbow". In the next shot she's holding him in both hands. (00:21:00)
Continuity mistake: As Glinda's bubble appears Dorothy walks off camera but we still see her standing there as her shadow is on the yellow brick road. When we first see Glinda Dorothy's shadow just disappears. (00:21:30)
Other mistake: As Glinda walks over to meet Dorothy, the bridge is the same but the background behind her changes between shots. (00:21:30)
Continuity mistake: When the Munchkins start coming out to see Dorothy, one Munchkin comes out of a manhole. But in other wide shots, and when Dorothy leaves to go to Oz, the manhole has totally disappeared. (00:22:25)
Continuity mistake: When Glinda starts singing, "Come out, Come out" she's not on the Yellow Brick Road. In the next shot she is. (00:22:55)
Continuity mistake: The blue shirted Lollipop Guilder comes from around the fallen house at the beginning of "Come Out Come Out," but he immediately appears emerging from a jet black manhole (with a black lip where the cover goes) in middle of the yellow brick in front of the house. (00:23:15)
Continuity mistake: When Glinda sings, "And Kansas she says is the name of her star" you can see the black manhole cover behind her and none of the Munchkins that are around it in the next shot are there. (00:23:15)
Continuity mistake: We see a Munchkin in a blue shirt climbing out of a manhole in the middle of the Yellow Brick Road and he has a prominent red scarf on. The wardrobe Continuity Person goofs because whenever we see him again, as in a glimpse in the very next shot and when Dorothy leaves Munchkin Land, the red scarf is gone. (00:23:20 - 00:33:25)
Continuity mistake: When Glinda says, "Let the joyous news be spread" the bridge and pond are behind her. In the next shot she's turned around almost facing the pond. (00:23:40)
Continuity mistake: When Dorothy starts singing, "It really was no miracle " we see two Munchkins on the bridge. One in a red and white bonnet and the other has a distinctive blue hat. In the previous shot they are together on the other side of the stage on Dorothy's left. (00:23:40)
Character mistake: When the munchkin soldiers first arrive, you can see that some of the munchkins in the front are not beating their chest at the same time. This also happens when the munchkins sing the "fa la la la la" song before the witch arrives. (00:24:25)
Suggested correction: That happens in real life too with real soldiers and live performing actors as much as they try to perfect it because they're human, not machines. Unless there's a rule in the film that a munchkin has to be perfect and can't make mistakes like that, not seeing why this is a movie mistake when this is something that happens in real life.
Continuity mistake: When the mayor of the Munchkin City comes out of the doorway his over sized watch reads 5:30. In the next shot it reads 5:00. (00:25:40)
Visible crew/equipment: As the Munchkins sing "Ding Dong The Witch is Dead" " the shadow of the cameraman and someone else can be seen on the nest of the green Munchkin eggs as they hatch into little pink Munchlets. (00:26:55)
Continuity mistake: The mayor of the Munchkin city stands alone on the steps and proclaims, "Let the news be spread " In the next shot Toto suddenly stands at his left. (00:26:55)
