Twins (1988)

Other mistake: When Devito sends Arnold into the house to get his stuff and go with him to New Mexico and Houston, Devito quickly jumps into the car to drive off. (You can see on the long street behind him that there are no cars coming). Yet, not one second has gone by and you are looking at him from the front of the car and Linda and her sister pull up behind him blocking him in the driveway. They turned in from the left which was the same stretch of street you were looking at with no cars on it just one moment earlier. (00:48:40)

Vincent: Now I know you're probably used to growing your own vegetables and spearing fish on the lagoon. But here on the mainland, we just nuke it.

Trivia: When Julius visits Vincent in prison, Vincent calls him "Mr. Universe", a title that Arnold Schwarzenegger held for several years, 20 years previously.

Question: How could Mary-Ann not know she was giving birth to Vincent shortly after Julius was born? Wouldn't she have felt another intense pain to indicate she was going into labor a second time? Plus, how would they be able to keep the birth of Vincent a secret from her in the first place?