-Book I'd love as a Movie:
"The Iliad."
Yes, I used "Troy" as an example of an abomination of an adaptation, but done right, this would be GREAT! Split it up into three films- Film One would have the intial rumblings/Judgment of Paris to the stealing of Helen to the Greeks sailing climaxing with the first great seige of Troy. Film Two would flesh out the quartet of Greek heroes, Ajax, Achilles, Agammemnon, and Odysseus and on the Trojan side juxtapose Paris and Hector.. film ends with the infamous scene where Achilles, not fighting because of the dispute with Agammemnon, sees his brother, disgusied as Achilles, killed, and you see Achilles starting to devolve into the mad rage he's famous for. Film Three's the Bundle of Battles- Achilles vs. Hector, Achilles getting shot, the Trojan Horse...
It'd be GREAT so long as they took their time and didn't rush it (and NOT use a ton of CGI beyond using it for adding the necessary huge armies and fleets on each side... "The Odyssey" I don't think would fare well as a film, or has, or can... one man and a bunch of bad CGI monsters is what it'd be- a great man, Odysseus being so awesome of a hero... still... too much CGI would be needed, not enough human connection, and "The Iliad" has that by the score.
-TV Show as a Movie:
Star trek (obviously.)
A new one... well, the Season 6 opener of "House MD" was feature-length and BRILLIANT, Hugh Laurie BETTER win an Emmy for that... maybe House's final case someday (hopefully a far-off day, that is the still-being-made show I watch on TV, second to Trek I love no TV show more, and I MEAN LOVE THA SHOW!) they could do something like that...
-Play as a Movie:
MANY of Ibsen's plays. "Enemy of the People." "Ghosts." And, especially, a GOOD version, with the best English actors available... "A Doll's House."
-Video Game as a Movie:
Two suggestions:
+I'd like a cartoon version of Super Mario Brothers... putting it in real life and in brooklyn and with real actors was ridiculous, there was no Goomba stomping ot fireballs or Bowser as we know him... just give us the classic world, and it'd be like "Alice in Wonderland"... if Alice had Mushrooms. (Take that comment whichever way you want, a few good jokes in there...) ;)
+There MUST be a version of "The Legend of Zelda!" That is THE best story-driven video game ever, the whole franchise! I have no diea how to do it or to make it cartoon or computer animation cartoon or live action, but it MUST happen!