Why did Goldfinger have to kill all of the top gangsters with an atomic bomb?
I suppose we can accept that Goldfinger constructed an entire building to create an elaborate audio-visual sales pitch for his plot to blow up an atomic bomb in Fort Knox to show to all the top gangsters in the country because he wanted to impress them. But like I said, why did he kill them? Don't all of the remaining gangsters know where he lives?
And even if you can think of a reason why taking on rubbing out the entire leadership of the mafia nationwide hours before committing the moon landing of crime is a good idea, why crush Mr. Solo inside his car with a million dollars of gold in the trunk? Wouldn't it have been better for him to kill him on the driveway? And then, he could take the gold out of the trunk before crushing the car.