Oskar Schindler begins in the film, as only a selfish person who only wishes to use Jews in his factory because they are basically slave labor for his factory, enabling him to make more money. Neeson plays Schindler with the right amount of intensity and strictness in the way he goes about his business. He properly keeps Schindler as just an exploiter at first and nothing else. He has the right coldness in his performance and does not play him as a hero in the least, which makes the rest of his performance all the more powerful.
In these early scenes though he also shows the charisma of Schindler. The inherit charisma that Schindler has is something small in the overall film but it is essential to part of the success of the film. Believing in Schindler's charisma allows one to believe that Schindler was capable of everything that he accomplishes in this film. Neeson's performance is essential in showing the great feat that Schindler accomplished in convincing all the Nazi officials, and tricking them. Neeson is completely up to the task and always the right type of charisma in this performance. A nice natural charisma that is always believable, making it so Schindler's abilities never seem forced or unrealistic in the least.
The best part of Neeson performance is the his method in showing Schindler's change over from a completely selfish man to a Saint. Neeson never shows his change as an instant difference in Schindler but rather a slow deliberate change that it correctly handled by Neeson. He shows Schindler changes with short looks and reactions that are never overt but rather fine and understated. He makes Schindler change completely natural and with the right amount of power. He shows that Schindler slowly sees how truly evil the Nazi's are and slowly realizes his greater importance. The slow change builds up to the his final scene in the film where Schindler has completely become a righteous man.
The final scene of Neeson's is an incredibly powerful scene where Schindler regrets his inability to save even more lives. The scene I find is heart breaking every time, Neeson shows Schindler's true regret with all the possible true emotion and power. He shows that there was true loss of life felt by Schindler, and that he could have done more. This scene is perfect and Neeson is at the center of it with his perfect portrayal of Schindler's regrets. Neeson creates Schindler into a vivid and memorable character because of his perfect charismatic performance along with his, incredibly powerful transition. Both parts of his performance are incredibly challenging but Neeson succeeds quite well.