The Paramount marketing department were so certain that Barbra Streisand would gain a Golden Globe nomination for her performance, that not only did they put out an ad congratulating her victory, but posted it online moments before the nominations were announced, only to be swiftly pulled when Streisand ended up without the nod.
When Andy and Joyce first ring the doorbell on the house in San Francisco, the shot is of them from outside the house and their voices and the bell sound accordingly. When they ring the bell the second time, the shot is from inside, and their voices thus sound like they are on the other side of the door, correctly. However, the bell still sounds as though the microphone were still outside.
In the opening scene of the movie, Joyce crumples up an M&M's bag in her hand, and then the next shot shows her putting this bag onto her nightstand, only it's not crumpled up, and is actually flattened out.