A few sequels are considered as better than the original, the likes of Aliens, Terminator 2 and The Godfather 2, but they are based on the foundations of wonderful original films.
But can a sequel be great, even if the original wasn't? It turns out that, on the odd occasion, they can...
7. Hellboy II: The Golden Army
Ron Perlman spent four hours in make-up to play the Nazi-created, demon-turned-superhero Hellboy, with Guillermo del Toro in the director's chair for the 2004 dark fantasy superhero film, to mixed reviews.
When the sequel came out four years later, with Perlman and Del Toro both returning, what they created was a far superior sequel that saw Hellboy saving the world from a rebellion from the mythical world.
Raking in over $160 million at the box office and also being fawned over by the critics, the movie managed to stay faithful to its comic roots yet also deliver a stunning spectacle, which has fans still demanding that Del Toro get to work on a third instalment.
6. The Purge: Anarchy
With a radical new idea for a horror film, which sees all crimes made legal for 12 hours, The Purge turned out to be a largely run-of-the-mill home invasion horror that failed to live up to the anticipation.
It did gross nearly $90 million of a budget of £3 million, so a sequel, The Purge: Anarchy was rolled into production and came out a year after the first film.
What we got in the sequel was what we were expecting from the first film - the focus was spread out to Los Angeles, with perspectives on both those trying to stay alive and those revelling in the anarchy, the sequel was universally regarded as a much superior sequel.
5. Captain America: The Winter Soldier
While calling the first Captain America film bad isn't that accurate - it wasn't terrible, but The First Avenger was a somewhat forgettable by-the-numbers superhero origins story (although with Marvel's best villain to date).
However, The Winter Soldier - directed by Marvel faves The Russo brothers - drew inspiration from 1970s conspiracy films to give it a feel that fans hadn't seen before from an MCU movie.
With the third Captain America film Civil War getting even better, thanks to The Winter Soldier's influence the super soldier story is probably Marvel's finest standalone franchise.
4. The Devil's Rejects
When heavy-metal singer Rob Zombie moved into film directing, he made his debut with 2003 exploitation horror House of 1000 Corpses, which was attacked by critics for its plot, cheesiness, acting and a reliance on excess gore for shock value.
Undeterred, Zombie returned two years later with the sequel The Devil's Rejects, which saw the murderous, blood-thirsty family from the first film becoming anti-heroes as they are pursued by a vengeful and ruthless police force.
While The Devil's Rejects was criticised for its excessive violence, many reviewers noted how much the writing and acting had improved from the first movie, and famed horror author Stephen King voted it amongst the top 10 films of the year - a glowing endorsement indeed.
3. The Wolverine
While the X-Men films were doing their thing, 20th Century Fox set about making a spin-off series for the fan favourite and most famous member, and X-Men Origins: Wolverine brought us the backstory of how Logan came to be the angry, self-healing, claw-wielding mutant that we know and love.
Unfortunately, Origins was a terrible film and plans for other X-Men Origins follow-ups were scrapped, but X-Men was enough of a money-spinner for 20th Century Fox to know that they could successfully make another Wolverine solo film.
Which they did with The Wolverine in 2013, which sees Logan travel to Japan and temporarily lose his healing factor in a much better-received superhero film that was praised for its action sequences, characters and faithfulness to Wolverine's rich comic book history.
2. Star Trek II: The Wrath of Khan
Back in 1979, the Star Trek TV series made the jump to the big screen with Star Trek: The Motion Picture, which turned out to be a dull, special effects-heavy snoozefest which holds a dismal 46% rating on Rotten Tomatoes.
Despite that, three years later The Wrath of Khan was released, with genetically engineered tyrant Khan with his Genesis Device, plans to destroy Captain Kirk and much-parodied "My name is Khan".
Wrath of Khan was dubbed by one critic as "the film that saved Star Trek", as it renewed fans' interest in the series and is now considered one of the best films in the Star Trek series, boasting a superb 88% Rotten Tomatoes rating.
1. Ouija: Origin of Evil
Despite grossing over $100 million, the first Ouija film was overwhelmingly panned by critics, as the story of a group of friends who unintentionally awaken a dangerous and angry spirit was so slow and incredibly dull that it practically sent audiences to sleep.
However, its prequel Ouija: Origin of Evil took the story back to 1967 Los Angeles and featured a mother and two daughters who run seance scams accidentally get possessed after they try to contact the girls' recently-deceased father.
Having recruited Mike Flanagan - director of Absentia and Oculus - to work his magic, the creepy and chilling sequel was praised across the board, earning an 82% Rotten Tomatoes - impressive when you consider that Ouija boasts a measly 7%.