Best of Rifftrax 2
Twilight goes South Park
EDIT: I would be remiss if I failed to mention Cracked's hilarious Twilight page.
On New Moon:
"Edward, being a thirteen-year-old girl, thinks Bella has died and goes to Italy to commit suicide. He attempts to do this by exposing himself to the sun at noon in an Italian town. Since sunlight doesn't actually harm Twilight vampires, one must assume that Edward is hoping some macho Italians will see him in at full sparkle and beat him to death for being gay."