Maybe funny in the ice age
Maybe this film was really funny 30 years ago, but no offense it's no funny at all in this century. I watched this film thinking it was good since it had so many positive reviews, but I'm very disappointed. Worst in-laws film, at least by today standards it's terrible. I'm 32 years old (maybe the other reviewers are from another generation??), but this is awful. People of my age and younger, don't waste your time with this.

Perhaps the funniest movie ever made!
This original version of "The In-Laws" (starring Peter Falk and Alan Arkin) is perhaps the funniest movie ever made! The casting is perfect, the script is a gem, and the performances of Falk and Arkin are so absolutely on-the-mark that it's impossible to consider someone else playing their roles. This is a movie to own and watch over and over, any time you want laugh-out-loud, aisle-rolling belly laughs.

The In-Laws
This is the best of them all - no re-make can ever be as great as this, the original!!

"The next time we're in Tijata, Shel ..."
Perhaps once of the best comedic movies of all time. A classic, without a doubt. As I watched this film for the ump-teenth time recently, I am still amazed at all of the funny lines and scenes. I actually thought the script was 50% improvisation given how well Falk and Arkin interact on camera. They make it look so natural and effortless. Richard Libertini is a south-of-the-border cliche of cliches, and he is brilliant at it! What more can be said about the movie that hasn't already been said? Heaps of praise from this reviewer. As for the DVD itself, the only addition is a commentary, which was nice, given that it was Arkin, Falk, the director and the screenplay writer. Unfortunately they got off track so much in their own conversations vs. what is being shown on the screen that you've heard the whole serpentine bit 5 minutes into the film, and other things like that. But still worth the price! No remake could ever do this screwball comedy justice.

There are 2 words for Arkin & Falk: Versatile genius!
Ever since I had the great pleasure of watching Alan Arkin in "Catch 22" (which I did with great reluctance, having been such a great fan of the author Joseph Heller) I have managed to be in the audience of every movie in which he has graced the screen! His versatility as a character actor never ceases to amaze me; from the calculating casino owner in "Havana" to his portrayal as the reluctant dentist in "The In Laws" and everything else in between! Why on God's earth did they have to remake such a zany and entertaining film?
Peter Falk must, in all justice, take half the credit for the hugely watchable production and once again, the versatility really shines through, right from the very first opening frames; the true measure of a pair of first class performers!

I love it!