Continuity mistake: After Scarlet slaps "Mark" for kissing her, he runs after her trying to explain who he is, and when she stops him Scarlet either has her right hand up or her left hand up angrily pointing at him, depending on the angle of the shot. (01:18:55)
Continuity mistake: At the bowling alley, when Mike is with Maggie's three friends and speaks to the "too flexible" girl, her left hand is either on Mike's shoulder or not, depending on camera angle. (01:00:30)
Continuity mistake: When Alex and Mike are at the bowling alley, after Mike says, "Any girl in here would be lucky to have your attention," Alex's collar is either up behind his neck or lying flat in the following shots. (00:59:35)
Continuity mistake: After Naomi and Scarlet arrive home, when Alex introduces "Mark" to his mom, Scarlet holds her handbag in her left hand down by her side, then it's up on her raised forearm at the elbow and once again in her hand down at her side. (00:42:45)
Continuity mistake: Just as Mike walks to his seat in Health class, the skeleton stands in front of the window's blue shades, to the right. When Mike knocks Stan to the floor, the skeleton is right beside the classroom door. (00:44:50 - 00:47:30)
Continuity mistake: In Health class, when Mike begins explaining his views on abstinence, Mrs. Dell has her arms down in close-ups facing Maggie, but in the shots facing the class Mrs. Dell's arms are crossed in front of her. (00:46:15)
Continuity mistake: When Scarlet dances face-to-face with Mike, her left hand moves from his shoulder to her side so as to move Mike's hand up on her back, but Scarlet's left hand goes back and forth instantly a couple of times, between shots. (00:56:15)
Continuity mistake: The position of the team (note Ned, court lines, etc), when the 1989 photograph is taken at the start, differs from the framed photo that Mike looks at when he meets the 'janitor' at Hayden High. (00:02:00)
Continuity mistake: During Ned and Principal Masterson's conversation at the restaurant, after Ned tells her, "I'm the kind of guy who spends ten grand on Gandalf the Grey's quarterstaff from The Two Towers," Principal Masterson's hands are clasped on the table in front of her, but in the next shot she is holding the menu up in front her. Next shot the menu is on the table, but then up in her hands once again. (01:12:05)
Continuity mistake: When Alex tells his mom that he made the team, as they hug his left arm is over her right arm, but in the next close-up Scarlet's arm is instantly over Alex's arm. (00:53:20)
Continuity mistake: During Health class, when Mike knocks Stan to the floor Stan wears a baseball cap which falls off, but as Mrs. Dell shouts, "Boys, stop it!" the cap is back on Stan's head before it falls off again. (00:47:30)
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: After the 1989 scene is finished, we see adult Mike lying with his head on a pillow in a close-up. In the next shot Mike's head has now moved up higher on the pillow. (00:06:50)
Continuity mistake: After comforting Maggie when she was crying, when Mike invites her to his party she is standing with her arms down by her sides, but in the next shot when she says, "Yes, I would love to," her arms are instantly crossed in front of her. (Visible on DVD fullscreen.) (01:10:05)
Continuity mistake: When Mike is comforting Maggie because of her breakup with Stan, the position of Maggie's hands, head, etc keep changing abruptly between shots, and the proximity between Maggie and Mike changes as well during their conversation. (01:08:00)
Continuity mistake: When Alex walks in on Mike dancing with Scarlet, in the background Alex's arm is out as he turns off the stereo with the remote and then puts his hands in his back pockets in close-up. Then two shots later, Alex's hand with the remote once again points to the stereo and then puts his hands by his back pockets. (00:56:55)
Continuity mistake: When Ned walks into Principal Masterson's office and does the "peacocking" bit, in the close-up his index finger is at his chin as he holds his sunglasses by its arms dangling on his thumb, with the lenses facing down, but in the next shot the lenses are facing up between his fingers and his face. (00:49:05)
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: 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 Alex freaks at Mike for staring straight at the girl he has a crush on, he fully opens his eyes. They are normal in the next shot as he talks to Mike. (00:59:20)
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