Blooper

The can of cat food changes from one that requires a can opener to one with a ring-pull.

The camera pans by the stocking the Callaghans make for Lucy and in one shot her name is written in WHITE puffy paint, but in the next shot it is written in BLACK puffy paint.

When Jack and Lucy are walking by the riverfront and Jack tells Lucy she needs a better coat, they are close to the kissing couple by the light post. As the camera zooms in closer their position changes further back on the sidewalk. They reach the kissing couple for the second time about 30 seconds later.

When Jack and Lucy go to Peter's apartment to deliver furniture, the chair Jack made is strapped to the side of the truck when he opens the truck door. However, when Lucy steps up into the truck and sits in the chair to "test rock" it, it rocks freely and there is no strap.

As Lucy is pulling Jack up from the ice, Lucy's scarf is on her neck. The next shot shows the scarf in her right hand. The scarf then returned to her neck in the following shot.

Saul asks the nurse if there is a pharmacy in the hospital, to get Elsie some Nitro for her heart. Hospital pharmacies are usually only for in-patients, so visitors can't get so much as an Ibuprofen from them. Also, if the hospital did have a pharmacy for out-patients, Saul could not just go down and get Nitro, he'd need to have Elsie's prescription with him.

When the Callaghans are in Mass, the priest prays for the sick, including Peter. Then everyone sits down, the priest says some more things and the people say 'Amen.' In the Catholic Mass, people don't sit down at that part until the priest has finished the prayers and the people have said 'Amen.'

While on the tracks Lucy tells Peter that the train coming toward them is an express, then the train comes to a stop. However, the train sounds its horn as it approaches Peter & Lucy on the tracks, indicating that they are seen by the driver. Even though the two are not hit, the near miss would have required the driver to stop the train.

When Peter is "pushed" onto the tracks, you can briefly see the mat he falls onto.

The monitor in the ICU shows Peter's blood pressure to be 29/11, not sustainable for life and his heart rate is 80, too high for a coma. The line showing his heart rate is also flat which is what happens when the heart stops beating.

When Lucy and Jack are slipping on the ice, the "ice" bends. Also, you can see the knee pads underneath Jack's jeans.

When Lucy tells Jerry that she likes Jack, the leaves on the trees behind them are all green, even though it is just a few days after Christmas.

While Jack is playing cards with Peter in his hospital room, and Peter is still in a coma, Peter's left hand resting on the bed tray visibly moves.

When Jack arrives at home in January to tell his father that he wants out of the family business, he arrives with a Dunkin Donut box decorated with Fall decorations on it - namely, red oak leaves.

When Peter is in hospital in ICU, he is wearing nasal prongs delivering oxygen. He is breathing on his own. The sound track has the sound of a mechanical ventilator.

The train horn used right before Lucy pushes Peter off the track isn't a horn sound used by the CTA.

On the day that Peter wakes up Jack gives Lucy a ride home from the hospital. After he drops her off and pulls away crew members can be seen reflected in the windows behind Lucy, especially in the left window.

At Peter's apartment, before Lucy hits Jack with the the door, the clock on the microwave says 1:01 p.m. But after she gives Jack ice from the refrigerator, the clock says 12:01.

In the last shot, the iconic Marshall Field's clock is not visible in that position on that elevated train line (northbound heading toward the now non-existent Sun Times building).

Logan Square is depicted as being a short walk from downtown, when it's actually about 6 miles away.

The Callaghan family home is supposed to be at the western end of Division Street, but it was filmed in La Grange.

When Ashley Bacon goes to see Peter in the hospital, Ashley asks Peter who he is engaged to. Peter says, "l don't remember." Then the next scene Lucy walks into Peter's room and he asks, "Lucy Eleanor Moderatz, will you marry me?" Peter learns Lucy's name in a matter of minutes.

When Ashley and Lucy share an elevator in the hospital, Ashley gets off on the floor where Peter was just moved, while Lucy gets off on his old floor. It is never explained how Ashley knows that Peter has been relocated, but Lucy does not.

Although it may make no sense that Peter would lose a testicle while he was playing basketball (because his friend had a pencil in his pocket), a pencil going into said testicle could rupture it quite easily.

After Jack's truck is blocked in, he and Lucy both have to walk home from Peter's apartment. But we know from earlier that Peter's car is parked at his apartment and Lucy has the keys. They could have used Peter's car to get home.

When Jack walks Lucy home, he complains that it is freezing. Despite it, he has his jacket open on a chest, and in next scenes it is completely unzipped.

None of the characters has Chicago accents; Michael Rispoli's New Jersey accent is particularly noticeable.

Peter refers to the ice cream as "Chocolate Peanut Butter." The Baskin-Robbins name for this combination is "Peanut Butter 'n Chocolate."

In one scene Jerry tells Lucy not to tell the family the truth, because it will kill grandma, in another scene Jerry tells Lucy Tell the truth.