Goofs

As Jack enters the trading floor he takes a stack of trading slips from Chip's hands. A few moments later, his hands are empty and Chip hands him some trading slips again.

During the bike race Jack's bike toggles back and forth between a fixed gear bike and a typical single-speed freewheel bike.

When Jack is twirling his bike's handlebars and wheel in his apartment the down-tubes on the front forks are straight, but the on his street bike the down-tubes have a slight forward bend at the axle.

Jacks hair is noticeably shorter from the time he leaves Hector at the Hospital, to finding Terri on his doorstep.

Jack hair changes during the final scene when he meets Terry on the street. It changes from long to short several times.

When Jack is chasing the rider while in the cab in the first scene you see the rider move his right shift lever forward to increase his speed. When they show the close up of the gears shifting on his bike the chain is moving to a larger cog instead of dropping to s smaller cog. The chain would only move to a larger cog if the right shift lever was puller backward.

The very first time we see Jack on his bike is a reversed shot. The text on the sign Grand, Olive St and Trans Am on the car are all backwards.

Jack arrives at Quicksilver on his bike at around 17 minutes and then again at 26 minutes. Although slightly different takes are used, all the same people are visible in the background going through exactly the same movements both times.

When Jack is dancing on his bike in his apartment, Rand's hands keep changing between takes.

During the race just before Gypsy runs over Voodoo, the camera truck, crew and fill light can be seen reflected in several consecutive shop windows.

After Gypsy runs down Voodoo he is then seen driving slowly by Kevin Bacon and staring him down. You can see the crew reflected in Gypsy's back window during this drive-by.