When Reuben and Sandy are talking in the street after the play disaster, and Sandy is telling Reuben about the fake E! True Hollywood Story, Reuben's tie keeps changing. In one shot, the tie has a dimple and is in a full windsor knot, and in other shots, the tie has no dimple and appears to be in a half-windsor knot.
Polly explains to Reuben that she's travelled to many exotic places (Singapore, Costa Rica, etc.). The last place that she lists is Buffalo, New York, which is the city that Jennifer Aniston's (Polly) last movie, Bruce Almighty (2003), took place in.