Continuity mistake: When Talia gives Larry a pair of glasses, a strand of hair is either falling over her cheek or tucked behind her ear, depending on the angle.
Character mistake: One of the latin chefs says in Spanish "Tengo un novia", when the correct way of saying it is "Tengo UNA novia". The way he said it sounds completely absurd.
Factual error: Julia Roberts character orders Pizza and Wings, gives the driver one bill (guessing it's a $20). Says she's giving a $12 tip. No way Pizza and Wings costs $8, certainly not in California.
Continuity mistake: When Talia enters Larry's place a book lying horizontally next to his highlighted book disappears.
Continuity mistake: When Larry highlights the book with the yellow marker his left hand jumps from being on the lower part of the book to the middle part.
Continuity mistake: At the flea market Talia moves a hanger to a side and says "No." The blouse is white but in the following angle it's brown.
Continuity mistake: When Larry is snapping his fingers his hair and backpack move, but there's a shot from behind him where his arms are not raised and his body is not moving.
Continuity mistake: In the scene where Julia Robert's character gets on the back of Tom Hank's character's scooter, she is first seen wearing a green helmet with red/white stripes on it. Later in the same scene she is wearing an all black helmet.