Might it not be that many of the answers were wrong?
When they start working on a James Bond movie, they refer to it as Bond number X until they reach a decision on the title. This year’s upcoming release was called “Bond 24” for several years.
Except that Bond movies aren’t really sequels in (what I take to be) the true sense of the word - there is limited continuity from one to the other, even if all are set in broadly the same universe
Does music count? If so, Chicago’s up to 36.
And the v/a series Now That’s What I Call Music! is currently at Vol. 52 in the USA and Vol. 89 in the UK, with more on the way.
The movies were actually not made but the 22 Jumpstreet credits were both a horrifying and hilarious view of what the future might have been.
It went all the way up to Infinity Jump Street.
For movies that have actually happened in the non horror category I’d like to note F&F, which although 3 and 4 dropped the numbers, returned to sequential numbering for 5,6 and 7.
And the Super Bowl’s up to XLIX. (Chicago almost caught up with the Super Bowl at one point - they released Chicago XVII around the time of Super Bowl XIX, IIRC - but the Super Bowl’s lead over Chicago is looking pretty insurmountable these days. ;))
Sorry if my OP was ambiguous. I was looking for movie franchises with the highest sequentially numbered sequel. So something with a 20 or 33 or 56 in the title doesn’t count unless there are previous sequels numbered 2 through 19 or 32 or 55.
One thing I didn’t mention was that I was actually thinking of theatrical releases, and movies with an actual plot, so things like “Girls Gone Wild” or “Faces of Death” aren’t exactly what I was looking for.
Peter Morris, what are those “Strange As It Seems” films? There do appear to be a lot of them, but none of the links I clicked on had any information about them.
I think sequels where ALL are numbered and had a theatrical release is a far more interesting questing then “How far into IMDB can I search?”
Fast and Furious 7 because 3 and 4 weren’t numbered.
Does Star Wars count, even though they didn’t come out in order from 1-6? If so, it’ll probably be the winner after 9 comes out.
They’re cartoon shorts. Probably don’t really count.
You do realize 56 Up ~was~ a sequentially numbered sequel? In a sequence counting by sevens.
I’m not certain, I found them in a list of movie franchises. They seem to besomething similar to Ripley’s believe it or not. If you are looking for something with a plot, it probably doesn’t count.
A peculiar thing about them is that they are numbered out of sequence. It possibly started with #3, #1 came several films and three years later, #39 might be the highest, but not the last. This is probably some sort of joke.
I would say the Superbowl has all the other franchises beat.
Apollo 13. 
David Letterman joked when it came out that he wasn’t planning to see Apollo 13 because he hadn’t seen Apollos 1 through 12.
In that vein, there’s the Oxford & Cambridge boat race, and it will be the 300th race for Thomas Doggett’s Coat & Badge this year. Excepting war years - which were later made up - the latter has been raced every year since 1715.
I just noticed our cable’s Adult channel is offering Rocky XXX.
He must be just working his way through the phone book.
Even if you admit the Up series as sequentially numbered, the sequence is broken by the second film, which was called 7 Plus Seven, not 14 Up. So 56 Up is at best the sixth sequentially numbered sequel.
I was taking a strict reading:
If porn movies count, there are several franchises that outnumber even the Superbowl.
They’re now all numbered on the bluray releases, so they go up to Star Trek X: Nemesis
