When trying to convince Kim that the day care center is a good idea, Charlie follows her into another room holding Ben's hand. After Ben bangs his head, Charlie says (at 20:12) "You don't want to be rubbing your head like that". He meant to say "banging" but was distracted by the fact that he had to rub Ben's head in the scene.
When Charlie and his son are coloring pictures in the dining room, Charlie's son draws a picture of him and his dad. Charlie's son tells Charlie he gave him a mustache and Charlie says he gave him a nice green mustache, but before their conversation, Ben shows Charlie the picture (at 1:00:03) and he didn't give Charlie a mustache.
When Charlie is telling his wife about the idea of starting a daycare center, he tells her (at 19:42) he and Phil applied for the child care license the day before. How is it that they applied for the license the day before and he had just come up with the idea earlier that afternoon at the park?
Just before the puppet show, the Child Services investigator takes a cookie. When Charlie, Marvin and Phil ask for privacy to discuss the missing child Flash, the investigator is holding the cookie. The scene looks at the puppet show and then back to the investigator putting the cookie in his breast pocket. The scene moves back to the puppet show and immediately back to the investigator who now has the cookie back in his hand again.
When Charlie is reading "Green Eggs and Ham," the girl with glasses is seen with only her plate of food, with no book in front of her (at 58:23). But in the next shot where she is seen, she is reading along with her own book (58:32).
During the lightsabre fight between Marvin and the kids Marvin grabs one of the lightsabres and reacts as if it burns him. In the wide shot Marvin grabs a green lightsabre (at 54:31), however in the close up (at 54:32) it is now a blue lightsabre he is holding.
When Charlie notices Ben is using his notes as napkins, he takes them away (at 03:29) leaving Ben no napkins. But then when Kim is talking to Charlie about the orientation, in the background, there is a napkin for Ben (at 03:34).
When the social service working is having Charlie sign the papers (that are cut up like dolls) he takes out his pen the first time he tell Charlie to sign, and right before he tells him again what to sign he takes out his pen again.
When Charlie and his son are sitting at the table having breakfast, Charlie puts his fist to the side of his face, and his son copies. In the shot of both of them, his son's hand isn't a complete fist, he still has his fingers pointing out, but in the next shot of just him, his hand is a complete fist.
When the Child Services inspector comes and is offered a cookie, Charlie comes in with the tray and oven gloves on implying that the tray is hot (at 1:03:54). But on several occasions the tray is resting against his chest, like it isn't burning him.