Harry dines at the Weasleys house while the Weasley parents argue about their children. Molly is angry that they took out the enchanted car while her husband Arthur is quite supportive. The next line was practiced 13 or 14 times, with each time being different from the former.
They eventually went with “what exactly is the function of a rubber duck?” The film adaptation of the novel was released in 2002 and became at the time the seventh highest-grossing film ever.
Dumb and Dumber
This classic 90’s comedy, Dumb and Dumber is a film about two seriously dimwitted pet stylists, buddies, roommates, and business owners named Harry and Lloyd. The two end up at the airport and encounter a woman (named Mary Swanson) with who Llyod falls completely in love.
Fifteen percent of the film is made up on the spot as well as their road trip scene in which they play tag and argue like children. The movie has since developed a major cult following. When they notice that she leaves behind her suitcase, they decide to tale a road trip to Aspen to deliver the luggage she left behind.
The Lord of the Rings: The Fellowship of the Ring
The Lord of the Rings: The Fellowship of the Ring Viggo Mortenson, playing the character Aragorn, thinks his friends Merry and Pippin are dead. He kicks a helmet in disappointment and screams in agony. His scream was purely authentic, as he actually broke his toe. The take was used in the film.
The 2001 fantasy adventure film was directed by Peter Jackson and based on the first volume of J. R. R. Tolkien's The Lord of the Rings. It grossed over $871 million worldwide and became the second highest-grossing film of 2001 in the world.
Ghostbusters
Ghostbusters was a classic and featured some of the best cast members of Saturday Night Live. No wonder it's one of the funniest cult classics of our time. One of the funniest actors was Rick Moranis. The actor was also on the improv show, Second City Television, which means he was a master of improvisation.
He is known for doing impressions of Woody Allen, Merv Griffin, and David Brinkley. So it’s no surprise that he so effectively improvised in the 1984 supernatural comedy film. He completely made up his speech to party guests on the spot.
Caddyshack
This classic 80’s comedy is so funny because of its improvised lines. Bill Murray improvised his Dalai Lama speech completely, and in his Cinderella Speech, the only scripted line he was given was “Carl cuts off the tops of flowers with a grass whip.” The rest he made up. The film has garnered a large cult following and has been regarded by Time and ESPN as one of the funniest sports movies ever.
Like some of his costars, Bill Murray honed his skills in improv on Saturday Night Live, where he gained recognition for funniest sketches of those seasons. It certainly helped that fellow castmember and Caddyshack star, Chevy Chase was there for all the good banter and riffing.