One of the coolest comic book crossovers of all time!

I have next to no idea about the overarching plot of the comic. I think it has something to do with evil aliens that look like the trademark red noses worn by everyone during the Comic Relief telethon on Red Nose Day (don't take that as fact, as I said, I don't know).

If there is a sequel, here are the franchises that I think would be funny to integrate (though the comic would probably have to be graphic novel sized at the very least)...

Sherlock (The BBC series set in the modern day) - Because seemingly everyone in the world loves Benedic- *ahem*, I mean, the story of Sherlock and its characters. It would be pretty simple to make a comic strip featuring characters from the hit BBC show. Picture this... Watson receives a letter from the BBC to visit their headquarters on Red Nose Day along with his partner, Sherlock Holmes, in order to help out with the Comic Relief telethon. Holmes begrudgingly agrees, but when they are arrived, they are greeted by numerous other incarnations of Sherlock Holmes and John Watson from history, such as the versions portrayed by Sir Basil Rathbone and Sir Ian McKellen, due to some Twilight Zone-esque shenanigans perpetrated by an unknown force, and it turns out that the BBC never invited them in the first place. It is then up to several incarnations of the world's most famous detective from across time and space to deduce the identity of the perp all the while the telethon is proceeding.

Tekken - This may seem far fetched, but Tekken is surprisingly quite popular here in Britain, and across the globe, adored by almost all cultures. The story could focus on the main character of Tekken 6, Lars Alexanderson, as he and the Tekken Force attempt to raise money for Comic Relief on their week off*. Hilarity ensues as they try to appeal to various characters and organisations from the Tekken universe, including the Mishima Zaibatsu, and eventually receive donations from characters from other fighting game franchises, such as Street Fighter and maybe even The King of Fighters and Mortal Kombat. (To quote Shia LaBeouf, "NOTHING IS IMPOSSIBLE!")

The Internet - Pretty basic stuff, really. Just feature a bunch of memetic characters and famous Internet personalities into one strip together with no real plot, and the comic would probably sell out instantly.

*Before you ask why some Japanese world-saving soldiers would be interested in helping out in a British charity drive... Four American mutated turtles and their rat father who are supposed to be kept secret from the humans of the world wanted to help out in the Comic Relief Comic. Suspension of disbelief, people.