Factual error: Shirley MacLaine and Jack Nicholson both live in River Oaks (very ritzy neighborhood in Houston) and are traveling to Brennans restaurant in downtown Houston maybe 5-10 miles away - but they go by way of Galveston which is about 45 miles south of Houston - which needless to say is way way out of the way...
Continuity mistake: Shirley MacLaine returns to the hotel from tending Debra Winger, who is dying in the hospital. When McLaine enters the motel lobby she is wearing one skirt and blouse outfit, but after stopping to check at the desk and going through a doorway to the pool area, she emerges with a different skirt and blouse outfit on.
Continuity mistake: When Aurora and Emma are drinking tea on Aurora's bed Emma takes a sip. From the way she tilts the cup there should still be a reasonable amount of tea in the cup, but in the next shot she laughs and shakes the cup so hard that whatever was left in the cup would have splashed out.
Revealing mistake: When Aurora sees Breedlove off at the airport they say good-bye and he walks through the door, which closes after him. After a few seconds she comes back to talk to him once more, and you can see through the tinted glass panes that he had been waiting right behind the door to come out again.