The Monstrous Regiment in question is made up of a vampire, a troll, Igor, a collection of misfits and a young woman who shoves a pair of socks down her pants to join the army.

Polly becomes Private Oliver Perks, who is on a quest to find her older brother, who's recently MIA,This collection of misfits includes a vampire (reformed and off the blood, troll, and igor, who is only too happy to sew a new leg on you if you aren't too particular about previous ownership. Polly/Oliver learns that having a pair of, um, socks is a good way to open up doors in this man's army.
very funny and as allways terry prachett writes an excellent comic story

I love Terry Pratchett books. Would love to see someone try and make a movie out of one (and hopefully do a good job).

Dennis

they have made plans to make good omens
by terry pratchett and Neil Gaiman,
Terry Gilliam to direct , just need to secure funding.

Good Omens is one of the funniest ones, I love the religious take-offs and just plain silly philosophy jokes. And Terry Gilliam directing gives me faith that it'll be well done.

Dennis

Omg yes, Regiment was a lovely book....

It was especially.... pertinent..... for me 

My favorite has to be Hogfather.... Pratchett really outdoes himself there.

Of course, its mostly best read at Christmastime, but still....

Never read Omens, but I should make the effort one of these days.