In a really neat spin on Hitchcock, Larry (Billy Crystal) and Owen (Danny DeVito) lead unpleasant lives: Larry's ex-wife has gotten rich by publishing a book that he wrote, and Owen has the most overbearing mother imaginable. When Larry tells Owen to calm down by watching "Strangers on a Train", Owen gets the idea that they should do criss-cross murders like in the movie. And just like in the movie, Larry thinks that it's a joke, but Owen's serious.
How they came up with the idea for "Throw Momma from the Train" I'll never know, but it's a hilarious movie. There isn't a dull moment in it. And that ending was a hoot. Crystal and DeVito are at their best, and Anne Ramsey is as much of a hag here as she was in "The Goonies". A modern classic.