“Lethal Weapon 4” has its moments. For one thing, it sports a great villain in the form of Jet Li. Seriously, he’s got a killer presence here and kicks the crap out of Riggs and Murtaugh. But the film is bloated to the extreme, with about 50 different subplots, some of which go absolutely nowhere (there’s an entire subplot, for instance, about Murtaugh’s wife writing romance novels under a pen name; who cares?!). There’s also a streak of casual Asian racism running through the film that was ugly even when the movie came out and is even worse now. As of now, this is the end of the franchise, and it ends things on a low note, even though the end credits try to make things nice and sweet and full of family-based moments. Also, Chris Rock is really annoying here playing a young cop who is dating Murtaugh’s daughter. Again, who cares?!