Continuity mistake: The crane that is behind the tree has a rope attached to it, but when Isabella comes the rope disappears.
Continuity mistake: Candace mentions that Jeremy works at Mr. Slushy Burger, but in later episodes is shown at Mr. Slushy Dawg. Afterwards, it was changed back to Mr. Slushy Burger.
Revealing mistake: The crane in the garden is behind the tree, but we see just the top of it - and under it is nothing.
Continuity mistake: When the "arms" take Perry's hands and feet. The "arms" came from the front of Perry, but in the next shot they've come from behind him.
Other mistake: The small door Candace enters at the beginning leads to the living room when really, it should be the kitchen. This error was not fixed in "Rollercoaster: The Musical."
Flop Starz - S1-E3
Continuity mistake: During the flashback to when Linda was Lindana, a mark can be seen on her right cheek but in the shot of her in the elevator and the newspaper saying she's back, no mark is visible. Also, her hair bow is on the wrong side.
Candace Loses Her Head - S1-E7
Continuity mistake: At the starting of the episode when Phineas wakes up you can see right next to him there are two pillows on his bed but when he sees the calendar and is about to throw the pillow on Ferb you can see that there is only one pillow.
Continuity mistake: Candace's neck is being measured in length for the fashion show, and an assistant is using measuring tape very close to her. In the next shot, he has completely vanished.
Audio problem: When Candice falls in the mud when talking to Stacy, she sees Phineas and she says "Hey, Phineas.", and her mouth drops open, but when she says Phineas again her mouth does not move.
Continuity mistake: When Phineas, Ferb, and Candace go to the stairs, the door has 'stairwell' written on it. Then, when the bubblegum case falls, before it goes through the door, it reads 'stairs', but once the door is open, it's back to 'stairwell' again.
Continuity mistake: In the scene where Doofensmirtz talks about how the sign blocks his view of other people's pain and misery, his window faces the sign. Then in the next shot where the laser blasts the sign, the Doofensmirtz evil inc. logo is facing the brick sign and the windows are facing the other way.
Continuity mistake: During the "Busted" song, the machine Dr. Doofinshmirtz is building is dark-grey and green. However, later in the episode the same machine is light-grey and blue.
Continuity mistake: When Perry is in the cage up in the air, the cage is being held up by a really thick metal wire, but when Charlene Doofinshmirtz (Vanessa's mom) lets Perry out of the cage the wire looks like dental floss.
Plot hole: When Linda (Mom) gets home from her cooking class and greets the boys, she sees nothing out of place. However, just a few moments before, we see the giant laser in the corner of the yard that they forgot to attach to the laser-inator. Wouldn't she have seen this?
Continuity mistake: When Dr Doofenshmirtz falls into the toy factory he goes crazy because he sees so many Perrys. Look at the Perry toy beside him first - the toy's foot points up, but in the next shot its foot is on the ground.
Continuity mistake: After the "Har D Har" commercial, the man puts the remote on the table, but in the next shot it's gone.
Dude, We're Gettin' the Band Back Together! (Part 1 & 2) - S1-E22
Continuity mistake: During the song at the end, there is a zoomed out shot of the entire crowd. You can see Phineas and Candace both screaming with their hands in the air, their eyes closed, and Phineas is not holding a camera. When the camera instantly cuts to a close up of them, both of them have their mouths closed, their hands down, their eyes open, and Phineas is holding a camera.
Dude, We're Gettin' the Band Back Together! (Part 1 & 2) - S1-E22
Continuity mistake: When Perry is tied to the firecracker he uses a laser watch to burn himself free, but in the next shot it's gone.
Dude, We're Gettin' the Band Back Together! (Part 1 & 2) - S1-E22
Continuity mistake: Near the end of the "Love Handel" concert the people in the audience switch from being close together to spread out leaving a path between shots.
Dude, We're Gettin' the Band Back Together! (Part 1 & 2) - S1-E22
Continuity mistake: During the song "Ain't Got Rhythm" Swampy's earring switches ears between shots.
Answer: "One boring day, Phineas recognizes an important truth; Summer vacation will end, and the teachers will want to know what they did on their summer vacation. And with these two kids, it has to be something extravagant..."http://uk.imdb.com/title/tt0852863/.
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