Other mistake: In one of the beginning scenes, the time at the bottom says that it is 22:00, which means it would be 10pm in China. In the scene, it is bright daylight, not night time as it should be. (00:02:15)
Continuity mistake: When Judy is crying over Sam's departure for college, Ron picks up his golf bag and carries it on his shoulder as he tells Judy to go up and pack. In the next shot, facing his back, the golf bag is gone only to reappear in the next shot as Judy goes upstairs. (00:09:40)
Continuity mistake: When Judy goes upstairs to pack after finding the baby booties, behind Ron there is a chair at the head of the dining room table, in front of the box he just taped. Then, just before Ron says, "Your mother and I are really proud of you," that chair has vanished, only to reappear when Judy shouts that she's crying again. (00:09:45)
Continuity mistake: After Judy goes upstairs to pack, as Ron has a heart to heart with Sam, the dogs jump onto the couch and there are striped and patterned pillows beside Mojo. When Ron says, "Mojo, no dominating Frankie," the striped pillow is gone from that side of the couch. (00:10:00)
Visible crew/equipment: When Ron and Sam are discussing college and girls, in the shot facing Mikaela, as she's airbrushing the design on the motorcycle, the reflection of a crewmember (wearing a blue shirt) holding a reflector screen is visible on the chrome surface at the left, and as the camera pans in closer to her its moving shadow is also visible. (00:10:50)
Continuity mistake: When Mikaela phones Sam and says that she's breaking up with him, in the first shot of Sam as he walks down the hallway toward his room there is no curtain in front of the window to the right, but in the second shot as he reaches his room, there are white curtains draped over the windows. Then, when Sam runs into the hallway because of the fire, the curtains are gone again. In fact, the white curtains are actually outside the window - someone had closed the windows over the curtains. The curtains reappear again when he runs back into his room with the extinguisher. (00:11:15)
Continuity mistake: When Sam is on the cell with Mikaela, telling her about the long distance relationship kit, he reaches for the webcam with his right hand outstretched while holding the cell with his left, but in the close-up it's his left hand picking it up, while holding the cell with his right hand. (00:11:20)
Continuity mistake: When Sam is on the cell with Mikaela, the Cube sliver falls onto the floor and Sam reaches down to pick it up with his left hand, as he holds the cell with his right hand. However in the close-up it's his right hand picking up the sliver. (00:12:10)
Continuity mistake: When Sam is in his bedroom, after he finds the Cube sliver it falls and dramatically burns a hole through the floor into the kitchen. But Sam's bedroom is over the living room (there is nothing on the ground floor below Sam's elevated bathroom, and in the first movie Jazz hides in this open space), and the kitchen is actually located between the den and dining room, at the other end of the house. If they were to follow the actual floor plan of the house, the Cube sliver would have landed in the area of the piano in the living room, but where would the fun have been in that? (00:12:30)
Continuity mistake: When the Cube sliver burns through the floor and falls onto the kitchen table, in the overhead shot there is a red stool on the side of the table (bottom of screen) with the bowl of cereal, but as the appliances transform that stool is at the wall beside the doorway. It reappears beside the table a few shots later, as the transformed blender jumps on it. (00:12:30)
Visible crew/equipment: After Bumblebee has blown up Sam's bathroom and Sam orders him to get in the garage, as Judy shouts, "Holy mother!" the reflections of the moving boom mic and two crewmembers (one wearing blue short sleeves and the other wearing white short sleeves) are visible in the window to the right. (00:14:35)
Continuity mistake: At NEST headquarters in Diego Garcia, when Galloway arrives holding up the Presidential order document, in the shot from behind him as he walks through the front gate, the booth is to his right (viewer's right) and the vehicle to his left (viewer's left), but in the shot facing him the booth is to his left (viewer's right) and the vehicle is to his right (viewer's left). (00:19:50)
Continuity mistake: When Optimus transforms at the NEST headquarters, Galloway, Epps and a third soldier are watching that form the ground. But when Epps says: "Gotta wonder. if God made us in his image. who made him?", the third soldier, who was standing behind Galloway and Epps instantly disappears. (00:21:20)
Continuity mistake: At NEST headquarters, when Galloway shows up and speaks via camera with General Morshower, he is seen on the monitor buttoning up his suit jacket, but in person his jacket remains unbuttoned. (00:22:25)
Continuity mistake: At NEST headquarters in Diego Garcia, when Optimus points his finger at Galloway and says, "We've witnessed your human capacity for war," both of Lennox's arms are up and crossed in front of him, then they're down and clasped behind him, and then back to crossed in front of him, between shots. (00:22:40)
Continuity mistake: When Sam enters his dorm room for the first time (carrying the box), the two large stickers (rectangular and round) are to the right of the two posters on the door, but in the following shots both of the stickers are to the left of the posters. (00:25:30)
Continuity mistake: When Sam meets Leo in the dorm room, the bike near the window is not chained/padlocked to the metal bed frame springs. However, when Leo complains about Robo-Warrior the bike is chained/padlocked to the bed frame, but when Sam's parents walk in it's not again. Additionally, the bed frame moves from being in front of the window closer to the corner, to being directly in front of the window fan. (00:25:40 - 00:27:45)
Continuity mistake: At Sam's dormitory, there is a bathroom directly across Sam's dorm room which has a blank wall beside its door, when he asks the RA to switch dorm rooms. However, when Leo joins him in the hall there is a large framed photo hanging there. (00:28:10)
Continuity mistake: At the frat party, when Sam uses the cake frosting to write the symbols, in the first shot he writes the first symbol with perpendicular lines aligned with the cake's edge. In a following shot showing more frosting symbols, the original two lines have changed shape and position - none of the symbols are aligned with the cake's edge. (00:33:50)
Continuity mistake: When Sam is at the Frat party just after he has written the code on the table with cake, he goes and gets a drink. The glass is full, the camera cuts to the girl talking and then cuts back to Sam and the glass is nearly empty, cuts to the girl again and then back to Sam, with a full glass again. (00:34:15)
Answer: Well, for one thing, he blew up Sam's room and half their house. Sam knows Bumblebee meant well, but is still mad at him because of the destruction he caused. It's the equivalant of a child knocking over a vase while trying to hit a fly.
Brad ★