Boost:

sequal, a sidequal, or a gritty reboot, I think Temple's status as a prequel is weak at best.

Dang it Boost! We've been over this! If you want me to take you seriously, when discussing 'quels, you're going to have to learn to spell the word correctly!

Until then, your opinion is moo*.

Slugoo:

A prequel ought to set up a story of an already existing movie with in the same 'franchise'.

Agreed on the 'franchise' bit. But I believe that's covered by the sequel clause as well. Stories that happen later are not usually considered sequels unless they are in the same franchise. And not even then.

But what, books and comics, videogames, radioshows, and ballads can't have prequels now? Just movies?

Boost says:

Godfather II is not a prequel.

Anchorhead, the legend of Brian Daley said:

Godfather II is the gold standard of prequels.

I'll leave this to you two to sort out. I've never actually seen the Godfather movies.

Diddy solo's daddy said:

im really apprehensive about Ridley Scott making a prequel to Alien

Good point.