Corrected entry: When Lilly Tomlin is driving the car with Jane Fonda and Dolly Parton, and the body in the trunk, there's a small accident, and one of the tail lights gets smashed. A cop pulls them over and makes a whole ordeal ABOUT the tail light being broken. Yet as soon as they manage to pull away from the cop, both tail lights are on and equally functioning perfectly.
Corrected entry: In the relatively brief scene in which Jane Fonda is coming home from her first day at work, she walks up the outside stairs to her apartment only to find her ex-husband waiting at the top of the stairs. When we first see Jane ascending the stairs, there is no car sitting in the street behind/below her. But, after she sees her husband and greets him ("Dick!"), we see that the red car is parked down in the street with his new woman sitting in the passenger seat (so there is no way she was driving, circling the block or anything like that). The car would have had to have been there before. It "appears" out of nowhere.
Corrected entry: The warning on the box of rat poison says "Caution: keep out of reach of small children." Any sort of poison would say "Danger" and have a much more serious warning.
Corrected entry: In Lilly Tomlin's fantasy scene, she sticks the spoon (all the way up to its handle) into the poisoned coffee mug. When she takes out the spoon, only half of the bowl part of the spoon is eaten away.