The premise of this film is really simple: if two families are about to enjoy the union of their children in a marriage, is it not likely that the in-laws involved can come to depend and help each other out in times of need? Most of us would probably say no, or want to know the extent of the help. However, when Vincent J. Ricardo (Peter Falk) asks Dr. Sheldon Kornpett (Alan Arkin) to assist him in retrieving something from a safe in Ricardo's office, Kornpett is willing (if somewhat suspiciously) to do it.

The reason that Kornpett is suspicious is he is not quite certain what to make of Ricardo. They only met at Kornpett's house the night before, for a dinner party introducing the families of the bride (Kornpett's) and groom (Ricardo's) to each other. Ricardo acted...well oddly. He told tales of his business travels in Central America, including how in one country babies are being carried off by huge bats that are protected by the Guacamole Act of 1917. Kornpett hears this with a blank face, although his eyes do bug out a little in disbelief. Later, when Ricardo gets testy with his son over a comment about the former not being home enough, Kornpett can't believe the near rage that Ricardo demonstrates at the table. So his suspicions about his future in-law seem well based.

Shortly, after being chased and nearly killed by two men who are after the items that Kornpett picked up, the suspicions seem confirmed. Ricardo explains to him, over pea soup in a restaurant, that he actually is not a successful salesman but a C.I.A. operative (a photo in Ricardo's office confirms this: it is of President Kennedy, and the autograph refers to the Bay of Pigs Invasion). He is in the middle of a critically important mission in Latin America dealing with international finance and a conspiracy against the richest nations. Kornpett hears him out, and is upset to hear that there is more material that Ricardo hid in Kornpett's home the night before. He wants no part of it, and leaves to go home - only to find the police there. He flees, and does evade capture - at the cost of having his car repainted in a way he never would have wanted it to look.

Soon Kornpett is forced to join forces with Ricardo, and enters the deadly serious but (here) quite farcical world of international espionage and intrigue. At the end of the road is the ringleader of the conspiracy, General Garcia (Richard Libertini) who has a special little friend that makes Al Pacino's little friend in SCARFACE lethal but sensible in comparison.

THE IN-LAWS is funny. Arkin with his tight-ass repressive personality works well against the free-wheeling, anything goes Falk. Libertini appears only in the films last twenty minutes, but he does equally nicely as the ultimate in screw-ball dictators. Well supported by a cast including Nancy Dussault, Arlene Golonka, Penny Peyser, Michael Lembeck, and Ed Begley Jr. the film is just a laugh fest until the happy ending. As mentioned elsewhere in these comments Arkin and Falk should have made several films together. They have only done one other movie together since THE IN-LAWS. Pity.

A masked gang rob a Treasury Department armor truck and steals the printing plates. Vince Ricardo (Peter Falk) needs $1.5 million by tomorrow for the plates but his son is getting married. The bride's father is mild-mannered dentist Sheldon Kornpett (Alan Arkin) and the family has never met Vince. After having the family dinner, Sheldon doesn't like Vince and tries to stop the wedding. Vince barges into Shelly's office and drags him out for 5 minutes. Vince convinces him to break into his office to get a bag while two armed goons are waiting outside. After a shootout, Vince tells him that he's actually CIA gone off the reservation to run his own operation. He had stolen the plates to lure out South American cartel who had stolen plates of other currencies and intends to create hyper inflation making the South American debts worthless. The Feds find a plate in Shelly's basement left there by Vince and the two go off on an even wilder adventure in South America.

The plot is convoluted. The characters are irrational. It makes no sense that Shelly would do anything for Vince after trying to stop the wedding. The whole operation makes no sense. It makes even less sense that Shelly would follow Vince's lead in anything. It would be a completely pointless movie if not for Alan Arkin. He's great as scared and flustering. Peter Falk is also good and their odd couple chemistry saves the movie.

I wasn't expecting much when I went to this movie. The plot is silly and outrageous. What makes it, however, are the performances of Peter Falk and Alan Arkin. Fall is a person's worst nightmare. Totally sure that no matter how crazy things get, you will always land on your feet. Arkin is the opposite, scared of his own shadow and wanting to avoid any sort of strain or physician exertion. As soon as they meet, everything goes a hundred miles an hour. Arkin ends up in a confrontation with some Latin American soldier who talks to his own hand and is absolutely unbalanced. The result is slapstick and funny. The soldier is so wacko that Arkin is absolutely done in.