Goofs

In the first meadow scene, young Clare pulls off her right shoe and throws it at the bushes, where she believes her brother Mark is hiding. When she runs to take the blanket to Henry, we see that it is her left shoe that is missing off her foot.

When it's their first kiss for Clare, she has a long, thin, brown hair clip on her hair, near the end of the scene, the hair clip becomes yellow.

Toward the beginning of the film Henry has just come inside from a driving rain storm. He is not wearing anything on his head and yet when he is indoors his hair is dry.

When Henry sits with his mother on the train she is reading "The Chicago Tribune" yet when she goes to turn the page, the banner on the inside of her paper reads "The Washington Post".

When Clare holds her lottery ticket and checks the numbers she wears gloves, no gloves and gloves again.

The Calendar page for February 1984 pasted in Clare's diary has 30 days.

In Clare's diary, all of the 1984 calendars incorrectly line up the dates with the days of the week.

Michelle refers to the train as the subway. In Chicago, except for limited areas of track, the trains are elevated. They aren't called the subway but the "El"..

If Henry time-travels nude, he would not have lock picks. However, it is possible to pick locks with paper clips, hairpins, basically a couple of stiff wires. These are not particularly difficult to find.

When Clare is in the bathtub talking to Henry the water is clearly visible near the top of the tub. When the shot changes to a medium of Henry it is clear that the tub is empty of water.

The younger version of Henry (with longer hair) appears in a time when Claire is living with his older self. However, the younger Henry somehow knows the current day Claire's cell phone number.

Why would a wedding band perform "Love Will Tear Us Apart" during the reception? It's a dark song about a disintegrating marriage, and the lyricist's (Ian Curtis of Joy Division) state of mind before committing suicide.

Henry states at the beginning of the movie that he tried to prevent the car accident that killed his mother but he could never make it in time. The fact that he could have to warned his mother against driving the car on that particular hapless night on several occasions before the accident remains a glaring omission. He could have called her on the phone, passed the message through young Clare or in fact warned her in person when he met her on the train three years before the accident or all of the above and anything else.

It is a well-known suppositionary fact about time travel, that the past cannot be changed without altering the future. Or, possibly can't be changed at all due to the immutability of Time.

When Henry gets on the el train and sees his mom, the type of train he is on did not exist during this time period. The train they are on is very modern with sealed windows and sliding doors whereas the trains during this time period in Chicago still had windows that opened and doors that opened accordion style. The modern train they are on were not in use until the 1990's.

After Henry disappears and Clare is cleaning up the plate he dropped, you see him crossing the street and there is a Canadian flag flying on top of a building in the "Chicago" background.

Before Henry's final time travel into the woods, he already knows that he is going to die by getting shot and being naked, having had no time to find cloths. As soon as he appears in the woods next to a deer, he should have known that a hunter might fire a shot in his direction. If he had simply ducked or moved behind a tree, he could have prevented his own death.