Continuity mistake: During Mike and Ned's lightsabre duel, when Mike kicks Ned just after Ned says, "Covered by the local news," the chair in the kitchen behind him faces the foosball table (in the next room) with its back against the counter, yet in the previous shots that chair faces the front door. (00:20:20)
Continuity mistake: When Mike swings his lightsabre and causes Ned to slam backwards onto the floor, Ned drops his own lightsabre onto the floor beside him, with its red glow pointing toward the front door. Next shot the lightsabre is turned the opposite way, with its red glow pointing toward the kitchen. (00:20:30)
Continuity mistake: Just near the end of the Mike and Ned fight scene, Mike twirls in a circle and hits Ned with his saber in the overhead shot, making Ned fall. In the next shot however Ned is back up and Mike hits him again. (00:20:30)
Continuity mistake: When Ned and Mike are fighting with the lightsabers, Mike hits Ned with his lightsaber and he falls to the floor. When you see the shot of Ned falling, look at Mike. He is only holding his saber with one hand. In the next shot, you see him with both hands on his saber. (00:20:35)
Continuity mistake: During Ned's attack on Mike, Ned pulls the rug out from under his friend, after which the rug lies bunched up on the floor near the front door. As the scene plays out the rug's position changes between shots, particularly after Ned kicks Mike in the groin when Mike falls on his back with the rug under him. (00:20:40)
Continuity mistake: After their fight, when Mike and Ned are in Ned's kitchen with frozen veggie 'ice-packs' over their assorted injuries, Mike has a bag of frozen peas that keeps turning around, facing the opposite way, repeatedly. (00:21:00)
Continuity mistake: After Mike and Ned fight with lightsabers, when they are in the kitchen Mike's wedding ring moves from his left hand to his right hand and back again, depending on the angle of the shot. (00:21:05)
Continuity mistake: When Mike sees the female janitor come out, look at her broom and her mop. At first the mop is not touching the broom, but it suddenly is when the janitor asks Mike if he's alright. (00:22:45)
Continuity mistake: When Mike returns to Hayden searching for the 'janitor', as he is speaking to the real janitor saying, "There's an older guy with white hair...," Mike's black sunglasses are in his left hand, but when it cuts back to the close-up it's back in his right hand. (00:22:55)
Continuity mistake: After the lights flicker at the school, when Mike is at the top of the stairway, in his close-ups the door is in the background to his left, but when he asks "Hello?" he is standing further away from the door. (00:24:00)
Continuity mistake: When Ned is telling Mike that he will never return to Hayden, he is sitting on a chair with lights that are shining on his cheeks. In the shot from behind, they aren't. (00:25:40)
Continuity mistake: While Ned and Mike are waiting for the school secretary to get off the phone (for enrollment), when Mike opens the folder the faked science fair photo is at the top of the pile on the right. In the next shot, there is a photo on the left leaning on the inside of the folder cover and the science fair photo isn't at the top of the pile on the right, but when it cuts there are no photos on the folder cover. Then Mike closes the folder, but next shot it's open again. (00:26:10)
Continuity mistake: When Ned and Mike are in Principal Masterson's office, as she reviews Mike's transcripts there are some open pages on her PC screen, but in her close-ups the screensaver is active, then it's back to the original screen. (00:28:20)
Continuity mistake: When Mike and Ned are in Principal Masterson's office and she says, "I think Hayden would be lucky to have you," she stands up and removes her eyeglasses, but when she shakes Mike's hand she is wearing the glasses, and next shot they're off again. Then yet again, when she sits back down she is wearing them (in the foreground), just before Ned asks, "Would the lady mind if I smelled it?" (00:28:50)
Continuity mistake: After the initial meeting with Principal Masterson, when Ned and Mike, in his bedazzled shirt, stand at the top of the stairs talking about how awful Mike looks, the same teens (girl in a pink hoodie) pass them two shots later. (00:30:05)
Continuity mistake: After being accepted to Hayden High, when Ned says, "You always had my back in high school, if your spirit guide...," Mike's left hand is up at his mouth in the shot facing Ned. In the next shot Mike crosses his arms, but when it cuts his hand is back up at his mouth. (00:30:30)
Continuity mistake: When teen Mike comes to school in the new Audi, he parks on the yellow line, but when he's walking away from the car, it is perfectly parked, approximately 6-7 inches from the yellow parking line. (00:30:35)
Continuity mistake: During Mike's first class (before Maggie walks in), when he's on the cell with Scarlet, who is asking where he is, a cheerleader sits down behind Mike and places her right arm up with her hand at her chin and her left arm is down. However, in the next shot when she asks Mike if he would consider a 10th grader, now it's her left arm that is up and her right arm is down, instantly. (00:32:35)
Continuity mistake: In Mike's first class, when he sees Maggie walk in while on the cell with Scarlet, his left arm is either in front of him with his left hand up near his mouth, or his left elbow is on the desk with his head leaning on his left hand. The switch happens twice. (00:32:50)
Continuity mistake: At the beginning of the scene in the cafeteria, in the very first shot take note of where Alex and Mike are standing; look for a guy in a blue striped shirt. He is near the grey bars. In the close up of Alex and Mike, he is now in the back talking to some other dude. (00:35:45)
Answer: I've not seen the movie, but an ex-wife would be closer to her ex-husband than a coach to his old student, no matter how good.
JonTheRandom