The movie I need the title for is a colour movie, sorry but I can’t remember actors and can’t remember when it came out but not that old, within 20 years. The protagonist is basically a loner who somehow gets caught up in dealings with crims who want to kill him but can’t: in one scene they toss him off the top floor of a building but he falls through a manhole at street level and survives (he can be hurt, but not killed). Subplot has to do with a sick boy and his mother who the protagonist ends up caring for a lot (which I think puts them in danger re crims).