Visible crew/equipment: In one shot when Meg Ryan and Bill Pullman's characters are speaking in front of a shop window, you can see the cameraman's reflection. You even see him pivot his torso to follow the actors as they walk offscreen.

Factual error: While Meg Ryan is typing her letter to "Sleepless and Son," Rosie is sitting on the couch watching "An Affair to Remember." Any true fan of AAtR can easily notice that the editing of AAtR has obviously been tainted by the director of Sleepless - the scene with Deborah Kerr and Cary Grant leaning on the railing of the boat takes place towards the beginning of the movie, with the scene of them looking up at the Statue of Liberty taking about 4 days later. However, in Sleepless, the scenes shown of the continuously moving AAtR "movie" on Meg's TV are incorrect - the scene with Kerr and Grant leaning on the railing starts the sequence, it then jumps WAY ahead to them staring up at the Statue of Liberty (which then would have been about 4 days later), and ends with them standing at the railing of the boat again (4 days before).

Continuity: In the dinner scene where Tom Hanks is discussing the topic of movies with Rita Wilson, notice the drink glasses. They amount of wine in the glasses change several times throughout the scene.

Revealing: In the final scene when Annie and Sam are exiting the observation deck coming towards the elevators, the New York skyline backdrop which should be visible behind them has already been taken down and the entire sound stage wall can be seen beyond the observation deck safety railings.

Continuity: As Annie walks toward Sam and Jonah she is holding Howard the bear and Jonah's backpack. Annie returns only the bear to Jonah; as the trio walks to the elevator Jonah is seen carrying both the backpack and the bear. (There wasn't enough time lapse between shots for the backpack to be handed over, either.)

Continuity: When Jonah and Sam are seeing Victoria off at the airport, where does she go? During the scene other people are moving towards and around the door that Victoria seems pointed towards; however, in the shot that immediately follows her departure the doors are opened by the flight crew and passengers (including Annie) disembark.

Revealing: Meg Ryan listens to the radio broadcast while driving her car down a highway at night. In the head-on shots of her, you should be able to see in her windshield the reflections of the streetlights as her car passes under them.

Factual error: The Empire State Building observation deck closes at 12:00am, last elevator at 11:15pm. I know it took time in NYC for Meg Ryan to make it to the Empire State Building, but I really don't beleive that she got there that late to where she had to beg to go up.

Continuity: The man (bearded extra) sitting next to Jonas (the son) on the flight to New York is also seen sitting two seats away from Tom Hanks when Hanks flies to New York chasing Jonas. The same guy is on two different planes at the same time. (I know, because I'm that guy - the bearded extra.)