When Gina runs out of the room where the Colonel Bowman game was recorded, she wears entirely different boots from the rest of the last part of the movie.
In scenes involving the little red car throughout the film - internal shots have no rear view mirror while in external shots the mirror is back.
When Jake leaves the Hotel Room, he leaves with the suitcase full of money. When Diane and Jake are kissing in the front of the hotel and when they get in the Mercedes they only get in the front doors of the car and when they are driving there is no suitcase on anyone's lap. Later when they get to the Mansion the suitcase reappears.
When Jake enters the elevator you can see that he holds the brief case under his arm. In the next shot its not there and when the old lady enters the elevator you can see that it has returned.
When pulling up the security file on Cedric's character, the driver's license shows W98745621. Based on Washington State's driver's license scheming, the correct license code would have began with RODGEJ_30. (The underscore would have been replaced by the characters middle initial. Also, the file shows the record as being inactive, yet the date terminated is not available.
Bill count for standard Federal Reserve paper money bundles is wrong.
The glass panel shatters before the slipping bad guy breaks through it.
In the 'slapping' scene between Gina and Jake (right before the first slap is thrown), a crew member's shadow is clearly reflected in the shower door.
When Jake gets his cell phone for the first time and checks his call record, he says "El Pollo Loco." The closest El Pollo Loco to Seattle (where the movie takes place) is in Reno, Nevada; a little too far for a phone call for Mexican food.
22 minutes in as Jake is jumping in the car to escape the house, a boom shotgun mike appears on the right side of the screen.
When Jake is asking Gina whether their love was real, the boom mic bobs down briefly into view above her head.
In the hotel, Jake says the briefcase contains approx $250,000. There are 10 stacks of bills with two bundles in each stack. A bundle of bills contains 50 bills. So that would be a total of 100 bills/stack or 1000 total. The largest bill in circulation is the $100, thus no more than $100,000 could be in the briefcase (most people don't realize just how difficult it would be for a single person to carry large sums of money like $1,000,000 or $10,000,000 and how many suit/briefcases it would take to have such in "small, unmarked bills" but yet movie characters seem to be able to do so easily in even small bags.)
Jake receives a phone call from Gary, who tells him to meet him at Seatac's Terminal number 1. Seatac does not have a terminal number 1, it only has the Main Terminal.