‘A Dog’s Purpose’ Bitten by IMDb Users: 94 Percent Give Movie 1 Out of 10

Even when the focus of a film or TV show is on its human stars, cameos and small parts by animals can quickly snatch attention away from the headlining actors. Click through to see our list of scene-stealing animals: 

Billy Crystal's character in the 1991 comedy "City Slickers" adopts a calf and names him Norman. 

Once Punxsutawney Phil poked his head above ground, all hell broke loose -- at least in one of the seemingly infinite amount of days Bill Murray endured in the 1993 comedy "Groundhog Day." 

The most tweets about the season finale of the HBO crime drama "The Night Of" were focused on the appearance of, yes, the cat.

Also Read: ‘The Night Of’ Star Riz Ahmed Recounts Being ‘Typecast as a Terrorist’

Digby, the Cavalier King Charles Spaniel in 2014's "The Interview" proved to be both precious and integral to the film's climactic end. 

Yes, there's an actual goat in the college hazing drama "Goat." Without spoiling it, the animal is at the center of a tragic plot twist that happens toward the end of film.

Also Read: Nick Jonas Stalkers Barged In on ‘Goat’ Set, Star Says (Video)

Speaking of goats, there's an evil one featured in 2015 horror movie "The Witch." 

Also Read: ‘Goat’ Star Ben Schnetzer Exclusive StudioWrap Portraits (Photos)

The cat in "Inside Llewyn Davis" knew no bounds, escaping multiple times and heading off to faraway places. 

Talking bulldog Mr. Beefy made "Little Nicky" with Adam Sandler a whole lot more fun. 

A walrus stood out in another Adam Sandler movie, "50 First Dates," also starring Drew Barrymore. 

The snake in 2000's "Road Trip" got memorably mouthy. 

The tiger in the bathroom in 2009's "The Hangover" put a night of drunken debauchery among a group of guys over the top. 

Comet the Golden Retriever in "Full House" was pretty handy sometimes. 

The bear in "The Revenant" is easily among the most ferocious in cinema history. 

Lucky the cat took some attention away from the famously smart-mouthed Alf in this 1990s sitcom. 

Baxter! The pooch from "Anchorman: The Legend of Ron Burgundy" was quite the little survivor. 

Oscar bit Larry David so hard in an episode of "Curb Your Enthusiasm" that he had to go to the doctor -- and have a very uncomfortable conversation about it. 

Eddie, the Jack Russell on 1990's sitcom "Frasier" was so popular he made the cover of Entertainment Weekly.  

If dogs could win Oscars, Uggie, who played the dog in "The Artist," would have easily earned the film its sixth Academy Award. 

The kidnapped kitten that was named after a movie star stole some laughs from Jordan Peele and Keegan-Michael Key in the comedy "Keanu." 

Toto was Dorothy's prized pet in 1939's "The Wizard of Oz." But did you know his real name? It was Terry. 

The Lone Ranger wouldn't be right without his trusty steed Silver. 

Ferguson is Winston's scene-stealing cat on Fox's "New Girl," starring Zooey Deschanel. 

We all know what happens to Marley the Lab at the end of 2008's "Marley & Me."

Marcel the monkey kept Ross company on "Friends." 

Yes, Clint Eastwood acted opposite an orangutan called Clyde in the 1978 adventure comedy "Every Which Way But Loose." 

Helen Hunt and Paul Reiser helped make collie mix Murray famous on "Mad About You." 

When a guy gets severely downsized in the 1957 sci-fi film "The Incredible Shrinking Man," suddenly a house cat poses imminent danger. 

Jack Nicholson won an Oscar for playing a grump who got hoodwinked into caring for a dog named Verdell in "As Good as It Gets" -- also starring Helen Hunt.  

Orion the cat has an entire missing galaxy hanging from his collar in 1997's "Men in Black," starring Tommy Lee Jones and Will Smith.  

Don't you dare mess with Mr. Jinx, precious cat to military man played by Robert De Niro in "Meet the Parents." 

It was the cat in "Breakfast at Tiffany's" that brought the two lovers (played by Audrey Hepburn and George Peppard) together in the end.