If the one constant of Mann's cinema is that a man with a certain code is placed into a situation where that code is in crisis - and it seems perfectly easy to me to apply that theme to each and every one of his features, from the TV movie The Jericho Mile through the otherwise uncharacteristic period films The Keep and The Last of the Mohicans , all the way up to Ali 's story of a man who gives up success for his beliefs - we find in Collateral a variation on that theme that gives it added interest, coming so far into his career: in this movie, we have a man with a code who is a bad man, and a man with no particular code being forced, at long last, to develop such a code.
Of the Michael Mann films that I’ve seen—The Last of the Mohicans (1992), Heat (1995), The Insider (1999), and Ali (2001)—Collateral is most similar to Heat, featuring two multi-pronged protagonists who intensely resemble each other, despite being on opposite sides of the law.
That is the character attribute that has fascinated Michael Mann throughout his career, which has encompassed such films as "Thief", "Manhunter", "The Last of the Mohicans", "Heat", "The Insider" and "Ali" and it is the one that he never tires of exploring.
Collateral is a sluggish work that tries working you over rather than pleasurably working on you, which was far from the case with Mann's Manhunter, The Last of the Mohicans and The Insider.
While not all of his movies have been unequivocal success stories (Ali), most of them, like The Insider and The Last of the Mohicans, have hit their mark.
He directed the first film bland enough to put me to sleep with The Last of the Mohicans.