A group of puppies are stolen from a pet store by two thieves. A St. Bernard puppy escapes and sneaks into the Newton family's home. The workaholic father, George Newton, doesn't want the responsibility of owning a dog, but his wife, Alice, and their children, Ryce, Ted, and Emily, convince him. They give him the name “Beethoven” when Emily plays a portion of Ludwig van Beethoven's Fifth Symphony on the piano and the dog barks along to it. Beethoven grows into a full grown, adult dog and helps the children overcome their problems: he helps Ryce talk to her crush, scares off bullies for Ted, and saves Emily's life when she falls into an irresponsible babysitter's swimming pool. George, jealous of the affection Beethoven receives, feels neglected as his family fawns over him. The dog's antics ruin a barbecue he is hosting for Brad and Brie; unpleasant venture capitalists looking to invest and swindle him out of his car freshener firm. The Newtons take Beethoven to a veterinarian, Dr. Herman Varnick, for a routine medical examination and immunizations. They are unaware that he is involved in unethical and deadly animal experiments. He speaks to George and tells him of a supposed mental instability among St. Bernards making them potentially dangerous to humans and advises him to watch Beethoven closely for any sign of viciousness. He actually requires large-skulled dogs such as St. Bernards for an ammunition test. Dr. Varnick visits the Newton home under the guise of doing a follow-up exam on Beethoven. He puts fake blood on his arm and hits Beethoven until he leaps on him. He pretends to be in agony, warning George that Beethoven may be turning aggressive and must be euthanized or he will have no choice but to press charges. Emily, who saw Dr. Varnick hit him, protests that the attack was fake, but George, fearing for his family's safety, reluctantly takes him to Dr. Varnick's office. It is on the way there that George discovers his own affections for him: he remembers his father had to take their dog to the vet to be euthanized and he never forgave him for it. He fears that his own family will hate him now for taking Beethoven to be euthanized. When he returns home with the empty leash and collar, his family leaves the dinner table rather than remain with him, proving his fears true. After seeing his family upset, the Newtons go to Dr. Varnick's office, but he tells them that Beethoven has already been euthanized. However, George remembers that Varnick's receptionist told him that Beethoven would not be euthanized until the next day. George then notices that Dr. Varnick has no bite marks on his arm and assaults him. The Newtons follow him to his warehouse. Beethoven breaks free but is recaptured by Dr. Varnick's two associates, Harvey and Vernon, while Alice calls the police. George crashes through the skylight just as Dr. Varnick prepares to shoot Beethoven. Before he can, however, a captive Jack Russell Terrier bites him in the crotch, causing him to fire a shot in the air. After hearing the gunshot, Ted drives the car through the door and runs it into a cart, launching numerous syringes into Dr. Varnick and sedating him. As the Newtons reunite with Beethoven and free all the captive dogs, they notice Harvey and Vernon trying to escape and send the dogs after them. They escape into a junkyard, only to be attacked by a pack of Dobermans guarding it. Dr. Varnick, Harvey, and Vernon are arrested for animal abuse. The Newtons are praised as heroes by the news and George takes a new liking to Beethoven. Ryce also gets a phone call from her crush. The Newtons then go to sleep, saying good night to Beethoven and all of the dogs they rescued, who are all sleeping in their bedroom.
The film received mixed reviews from critics. On review aggregator Rotten Tomatoes, it has an approval rating of 30%, based on reviews from 27 critics, with an average score of 4.7/10. The critical consensus reads "Fluffy and incorrigible, Beethoven is a good boy who deserves a better movie." Audiences surveyed by CinemaScore gave Beethoven a grade A. Roger Ebert of the Chicago Sun Times gave the film two-and-a-half stars out of four, writing in his review, "this is not the sort of entertainment I scour the movie pages for, hoping desperately for a new film about a cute dog. Nor did I find anything particularly new in "Beethoven", although I concede that the filmmakers secured an admirable dog for the title role, and that Charles Grodin, who is almost always amusing, has what fun can be had playing the grumpy dad."
Box office
The film grossed $57,114,049 in North America and $90,100,000 in other territories, for a total of $147.2 million worldwide.
The soundtrack to Beethoven was released on December 15, 1992.
Sequels and spin-offs
The film was followed by four sequels and three standalone movies using the Beethoven name and the premise of a St. Bernard but not mentioning previous characters such as the Newton family. Beethoven's 2nd was released to theaters in 1993. The remaining sequels were direct-to-video films: Beethoven's 3rd, Beethoven's 4th, Beethoven's 5th, Beethoven's Big Break, Beethoven's Christmas Adventure, and Beethoven's Treasure Tail. An animated TV series was also created around the films that debuted in 1994. Dean Jones voiced the role of George Newton in it after playing Dr. Herman Varnick in the film and Nicholle Tom reprised her role, voicing Ryce Newton.