Revealing mistake: Daphne during breakfast opens a book about Saturn. The book is an obvious movie prop (the name of the author, "Cassie Miggins", is the name of the actual prop master of the movie), where the 'obvious' part is the fact that the page Daphne reads in close-up differs from quality and even paper weight from the rest of the tome, looking more like a poor laser print or photocopy in B&W glued to the page. It even has two mistakes in the first line!"This planets most impressive feature is it's ring system" (00:05:50)
Revealing mistake: Velma just learned that Daphne is going to attend her same school, and does not look thrilled. Spooky music starts, with a zoom on some elements of Velma's nerdy room. And one of the things she must be a huge fan of is our good friend the Lorem Ipsum, since behind the post-it sticker notes ("Why?" "THEY are watching") you can tell the papers pinned to the wall are just that; filler text gibberish. You can read literally "Lorem ipsum" under the headline of the "Internship at Bloom" clipping. (00:03:50)
Revealing mistake: As the girls handle the drone, and even more obviously when it drops on the security guard's head, it is clear by the way it bounce and clatters that it is almost weightless and certainly couldn't knock someone out cold. (00:59:50)
Revealing mistake: When Velma sabotages the science project making it explode into purple goo, you can see that the vial of chemicals she tampered with simply spray around clean liquid, and the purple goo falls from above. (00:23:55)
