Trivia: There are many similarities between A Clockwork Orange and the film Leon. Both main characters 'Alex' and 'Leon' are seen drinking milk many times in the films. Stansfeild (Leon) and Alex (ACO) both listen to Beethoven to stimulate their violence and the song 'Singing in the Rain' is featured in both films.
Trivia: In the shot outside of Tony's restaurant, before the scene where we see him celebrating his birthday and being interrupted by Stansfield, you can see someone walking past the restaurant. That person is Luc Besson, the director of the movie.
Trivia: According to the video extras, Natalie Portman was so in love with the clothes that the character she played of Mathilda Lando wore that she had hoped to keep some of the clothes, noting that Mathilda's tastes were far better and "cooler" than her own at 12 years of age.
Trivia: During the film, the character Mathilda was depicted as a smoker even before she met Léon and can be seen holding a cigarette early on. Despite assurances from Director Luc Besson, Natalie Portman's parents were so opposed to the idea that they wouldn't allow their daughter to be seen with even candy cigarettes in her mouth, so she only "holds" it, which actually added subtext.
Trivia: According to commentary included in the DVD release, in order to understand how to interact with a young Natalie Portman as Mathilda Lando, Jean Reno was encouraged to act as if he himself were a child.
Trivia: The script for Colombiana was orginally developed as a potential sequel to Léon: The Professional and was to have Mathilda now acting as an adult "cleaner."
Trivia: Keith A. Glascoe, who plays Benny, one of Stansfield's (Gary Oldman) men, was also a New York Firefighter and sadly died carrying out his duties during the September 11 attacks on the Twin Towers.
Answer: According to IMDb.com the title was only changed in the United States and the reason why was maybe audiences would find the title, "The Professional" more appealing than "Leon."
Tobin OReilly