Crew or equipment visible: Camera and crew reflected on passing cars while following Isaac running down the street.
Miscellaneous: In the first scene at Elaine's, as Isaac is beginning to say something, someone (presumably a customer of the restaurant, as it was running while they were shooting) walks in front of the camera. Isaac laughs, and quickly recovers with an impromptu remark about how his girlfriend has to go and do homework.
Factual errors:Mark Linn-Baker appears to be credited as Mary Linn-Baker.
Errors made by characters (possibly deliberate errors by the filmmakers): When Isaac asks Tracy how old he will be when she is thirty-six, she says "sixty-three," and he agrees. Earlier Isaac says that she is seventeen and he is forty-two, which means he is 25 years older than her, and would therefore be sixty-one, not sixty-three.
Crew or equipment visible: During the fireworks in the opening sequence the screen goes black several times - but not completely: Two bright circles - glasses - can be seen as a reflection (probably because the sequence was filmed from behind a window) and there is also a very slight after-image of the person wearing the glasses who might even be the director.