However, some people buy pets on a whim after seeing them in the movies.
This is why the RSPCA has partnered with Universal Pictures to urge prospective owners to thoroughly consider their decision before buying an animal.
Together, they have created HOP, a film about E.B, a fluffy bunny with attitude.
It stars Russell Brand, Hugh Laurie, Hank Azaria and David Hasselhoff.
Dr James Yeates, from the RSPCA's companion animals department, said: Sadly many owners who buy animals on impulse after seeing a film or TV show often lose interest in these animals, or feel unable to look after them any more.
"[People] should first carefully decide whether they have the time, money and space to look after that animal properly for the whole of its life."
The charity reveals that a number of films have sparked demand for unusual pets.
In the 1990s, the Teenage Mutant Ninja Turtles led to many people buying terrapins, while more recently, Harry Potter saw a number buying owls.