Goofs

When "Frankenstein" vomits on the floor, it is partially on the floor and partially on the carpet. Later, it is totally on the floor with none on the carpet

When Julian won't stop talking to the homeless man before going into McDonalds, the homeless man asks Sonny to get him a Sausage McMuffin. When Sonny and Julian come out from McDonalds the homeless man asks Sonny where his Egg McMuffin is.

At the super market, Julian has an itch and Corinne lays a package of frozen vegetables on his arm. In the first shot, the package is right side up. But in the very next shot the package is upside down.

The skater that trips on the stick is shown skating past the kid before he throws down the stick.

When Sonny is walking back to couch after tuning the television and says, "Let's do it, Rangers," he places his Pepsi behind the Chunk Chip bag. In the next shot when he says, "How you doing?" to Julian, the Pepsi is to the right behind the Cheetos Bag.

When Sonny decides to adopt Julian, his friends Tommy and Phil try to discourage him by warning him of the big responsibilities of parenthood. However, as lawyers, they never remind him that he would need Kevin's legal permission to do so.

When Sonny is teaching Julian how to do Chief Jay Strongbow's sleeper hold, he does it head-and-arm. Strongbow's sleeper was never in the head-and-arm fashion.

Sonny impersonates Kevin and tries making serious decisions about the fate of Julian, such as adopting him (to impress Vanessa), then giving him back to social services, and ultimately adopting him for good, completely disregarding the potential feelings of the real Kevin.

Urinating in public especially on buildings is illegal especially in New York yet Sonny and Julian never got in trouble for urinating on buildings.

Courtrooms do not allow food or other drinks (water only). Yet Sonny gives the unnamed homeless man a McDonald's bag in court and the homeless man is seen eating a few minutes later.

When the skater coming down the path in the park hits Sonny's stick, he careens down the hill into the pond between two large rocks. The smaller rock on the right lifts and floats a little to the right.

When Julian spills the milk on the floor the milk is spreading towards the back of the room. Then when the camera switches back to Sonny the milk is a circular pool before Sunny put the newspaper on it. The newspaper never gets wet.

When Sonny is on the payphone, Julian is show mouthing something to the guy on the payphone behind Sonny. The guy is giving him instructions.

During the court hearing about getting custody of Julian. The judge asks for the first witness and the first witness on the stand was Mr. Herlihy (the drunk old man from the bar at the beginning) but Corinne or The Delivery Guy were the first ones to witness Sonny with Julian.

The game Julian is playing is Twisted Metal III (1998). However, the sounds we hear while he's playing are generic "boop-boop-beep" arcade noises, and not actual sounds from Twisted Metal III.

The rollerblader tripped in the park yells out "God damn stick!" in Sonny's voice.

During the Kangaroo Song, the lyrics on the TV show "hop hop hop all DAY", but the singer actually says "hop hop hop all Night".

At the end of the trial, Corinne's shocked reaction upon learning that Julian belongs to her boyfriend (Jon/Stewart/Kevin Gerrity) makes no sense. Throughout the trial, the judge makes reference to Julian as "Julian McGrath, aka Julian Gerrity" and several statements were made regarding "Sonny Koufax impersonating Kevin Gerrity" so there is no way that Corinne wouldn't have put the pieces together to realize what the situation was.

When Julian showed up on Sonny's doorstep and Sonny calls social services posing as Kevin saying he'll keep him but then tries to give him up and then adopt him for good. Sonny should've got Kevin's approval to look after Julian until he got back from China and Sonny could've asked Kevin if he could adopt Julian and Sonny wouldn't have to face legal action when social services found out he was impersonating Kevin.

At the end of the movie when Sonny says "Vanessa?" while holding Julian (at around 1 hour 30 mins), Julian simultaneously mouths the line.