i saw it, was a really good show. well cast. but too many stupid plot holes to make it a great movie..
First, whilst Lex Luthor was taken there, how would he know exactly where to go back to Superman's home. Secondly, it's a bit convenient that its just off the coastline, I always had the impression it was deep inland.
Also, why do you need to get a rocket to fire the crystal/kryptonite into the ocean and then flee by helicopter because the ship is not far enough away when could have just flow to the area and dropped it into the water by helicopter and then flown away.
As someone else mentioned, carrying a big island of rock is hard enough on a normal day, but to do so with kryptonite crystals all around u? As someone else mentioned, how does Louis lane not know about kryptonite.
Also, the timing issue is very odd. He was meant to be away for 5 years. But Louis's son also looks to be AT least 5 or 6 years old. So in order for her story to be believable, and assuming it IS superman's son, then she would have had to get together with her new boyfriend almost as soon as Superman was gone. Which doesn't seem in character..
However, if you give her say, a year to get over him, plus another year to meet the guy and then get "pregnant", then the story falls down, because he cant then be superman's son, and the son himself could be no older than 2 or 3..
Finally, at the end, Lex is left stranded on a very tiny island, with a coconut tree. Bear in mind that all the action was meant to have taken place off New York, and a helicopter has very limited range, it is inconceivable that there is any such island within a helicopter's flying range of the coast of New York. For any other director, I could overlook this. But this is the man who gave us Usual Suspects… So such errors are really unforgivable.