These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: Quite a few cases, but perhaps the most notable - The President was awake when Winter revealed his evilness and while this wouldn't necessarily prove Salt's innocence it, in combination with the many other factors, could easily clear her name.
The Director's Cut explicitly says the President was killed, changing the ending considerably.
As if Jolie removing her panties wasn't FetishFuel enough, realizing that she doesn't get a change of clothes throughout most of the first half of the story somehow makes all those action scenes so much more awesome.
The scene where she checks into a hotel under a false name wearing a jacket she stole. Once she's in the room she goes into the bathroom and removes her false teeth and colored contact lenses, demonstrating how she is Crazy-Prepared. At first you watch and you're like "Wow she's a master of disguise! I didn't even notice the (now obvious) fake facial features!!" but then you realise that the reason you didn't notice her disguise is because she looked exactly the same' and was completely recognisable.
But it becomes Fridge Brilliance when you realize that she wasn't wearing those things to disguise herself from her pursuers... she was wearing them as part of her cover, in order to resemble the real Evelyn Salt, the American girl she replaced as a child.
At one point Salt is disguised as a man. It looks as ridiculous as it sounds.
On the silly latex facial disguise, yes. On the hair and clothes....
The scene where Salt tries to seduce Winter in order to be let in the bunker.
Nightmare Fuel: In the directors cut instead of seeing her husband shot Salt is forced to watch him slowly drown as he is heavily chained and water is slowly pumped in to cover him up. He also watches her as he is covered and slowly drowns.
Shocking Swerve: Many of the twists in the movie can be considered this, particularly the revelation that Winter is also a Russian agent.