Natalie Portman plays a 12-year-old, and was a 12-year-old, in Luc Besson’s gripping 1994 thriller that stars Jean Reno as a professional hit man who decides to protect a young girl whose family was brutally murdered. Gary Oldman plays one of the very best – as in the worst – villains in his career-long rogue’s gallery. And Portman, even at such a young age, is remarkable, while the film itself is equally remarkable for not being at all exploitive.