Add to my Movie Franchise Collection

[Garp]

Hi, I'm looking for ideas for movie franchises to collect. Below is a list of what I either have already or is on a wishlist somewhere to buy in the future.

Ideally I'm looking for trilogies or more, preferably available on blu-ray. I'm not into horror much, so you won't see 'Halloween' or 'Saw' etc, on the list, nor comedies such as 'The Hangover'. I'm keeping cartoons to a minimum, unless they complement a franchise already on the list ('Batman', 'Superman', etc).

I've included reboots and remakes as part of a franchise ('Poseidon Adventure', 'Wicker Man', etc) and I've let a couple of non-trilogies sneak in too ('Tron', 'Tomb Raider').

At the moment, I'm only looking to expand my collection to include trilogies with the same characters, so that I can watch them chronologically, rather than 'theme' trilogies (such as 'Red, White & Blue') by the same director.

However, I am collecting 'Theme Franchises', where there are several films around (usually) a character (eg. 'Peter Pan', 'Sherlock Holmes'), but aren't necessarily part of a studio franchise.

Anyway, if you can think of any omissions, please leave a suggestion and help me expand my collection. Cheers in advance.

Movie Franchises

Airport
Alien/Predator
Apu Trilogy
Avengers
Back to the Future
Batman
Before Trilogy
Blade
Bloodrayne
Bond
Bourne
Clash of the Titans
Crocodile Dundee
The Crow
Daimajin
Death Race
Die Hard
Dirty Harry
Doctor Who
Dragonheart
Dungeons and Dragons
El Mariachi
Exorcist
Expendables
Fast & Furious
The Fly
Gamera
Ghost in the Shell
The Godfather
Godzilla
Hannibal Lecter
Harry Palmer
Harry Potter
Hellboy
Hunger Games
Indiana Jones
Jack Ryan
Jaws
Jurassic Park
King Kong
Lake Placid/Anaconda
Lethal Weapon
Mad Max
The Matrix
Men in Black
Millennium Trilogy
Mimic
Mission: Impossible
Mortal Kombat
The Mummy/Scorpion King
Narnia
Night at the Museum
Ocean’s
Pirates of the Caribbean
Planet of the Apes
Poltergeist
Poseidon Adventure
The Prophecy
Psycho
Riddick
Robocop
Rocky
Scooby-doo
Sharknado
Species
Star Trek
Star Wars
Starship Troopers
Superman
Taken
Teenage Mutant Ninja Turtles
Terminator
Tolkien
Transformers
Transporter
Underworld
Wicker Man
X-men

Theme Franchises

Beowulf
Jack the Ripper
Marvel (includes 'Spider-Man', 'Fantastic 4', 'Ghost Rider', but got it's own category for reasons I forget)
Peter Pan
Robin Hood
Sherlock Holmes
Treasure Island
Universal Monsters

Soon-to-be trilogies

Da Vinci Code
Ghostbusters
xXx

Not Trilogies (but snuck in anyway)

Silent Hill
Tomb Raider
Tron
X-Files