ugh tell me about it! i nearly downloaded.. watched it pfft.
Here is the synopsis:
Stewie, the maniacal baby genius, is distracted from his plans for world domination after a near-death experience. Stewie plays nice thus creating an alternate goody-two-shoes version of himself. Convinced that a man on TV (his future self) must be his real father (after all, how could he possibly share genetic material with the dimwitted Peter?), Stewie sets off on a cross-country road trip to find him. But his incredible journey leads him to discoveries far more vile and shocking than anything found in his diaper.
it was really good...but you're right...too bad it was the movie and i had already seen it <_<