I'm suprised by the amount of love for Prince of Thieves...that movie gets a lot of hate, but it certainly is a great Forestmen themed movie, among other things. It probably has a lot to do with my love of Castle, so I guess I shouldn't be surprised a lot of other people feel the same.
Another one that gets a lot of hate (but one that I love) is First Knight. It was unfortunate to come in against Braveheart and Rob Roy, but it's still a great movie. Who wouldn't want to build that Camelot out of Lego? And that night battle (nobody ever does night battles, and this is one of the best, if not the best) where the knights ride in, and all you see is their armor glistening in the moonlight, is fantastic.
Of course it can't be a film or trilogy...But many chapters from sillmarillion can be great triology spectacles for itselves...Story about Beren and Luthien,for example...I would personally like to see that one
I'd rather see something about Fingolfin. But I'm biased in that he's my favourite character (in the entire history of Middle-earth, not just in the Silm).
All things considered, though - it's not going to happen. None of the stories in the Silmarillion are long enough to fill out an hour and a half or more of film. The problem with that is that whoever was to make the film would have to 'fill in' the gaps. This could create wild inconsistencies, poor dialogue, dialogue that isn't true to the characters, and a number of other absurdities that I already got enough of from the LotR films.
However, if we could resurrect Tolkien for a little while to help create such a film -I'd be the first one at the theatre.
Fingolfin rules. I can't ever remember another time in any story that made me go "HOLY..." The Blind Guardian song is also one of my favorites.
It made me so mad when they added the elves to the the Battle of the Hornburg. Tolkien was very clear that nothing like that ever happened again, with Legolas being just about the lone exception. Yeah, the elves are cool...so make a Silmarillion movie. Way too much artistic license was taken there, and of course they all had to die (which makes it funny when they try to make it dramatic as if you don't see it coming), because they were never there in the first place.
Personally I've always felt that the Fall of Gondolin would make a great movie and have the best chance of any of the stories from the Lost Tales/Silmarillion. It has all the pieces necessary to make a great movie (love triangle, betrayal, epic battle), and while it may not have Fingolfin, it does have Ecthelion (who is a very worthy 2nd coolest elf ever) and Glorfindel. It would also be funny to mess with people and have Legolas make a cameo, just to see how fans react lol (for those who don't know, the joke is that the survivors of the battle were originally led to safety by an elf named Legolas, but the name was later changed to apply to the lotr Legolas, who is not the same elf...would've made him a million times cooler if he had been at Gondolin, though)