if you want an easy solution, you are out of luck. Any conversion of a feature-length movie is going to take a LOT of time. You can't burn it straight to dvd. You will need to use a codec and QT pro to export it as somthing iMovie/iDVD will read. (DV would probably be easiest) then pray that the audio is still synced up. Import it say to idvd and add some kind of menu and burn. but idvd maxes out at 90 minutes, or 4.7 gigs (the media's size), whichever comes first. Getting a Divx player will be your best bet, or an ibook or powerbook with tv-out on them.
Good Luck!