Your grammatically incorrect, nonsensical question aside, there is no such thing as The Family Guy Movie first of all.
Second of all, if one is ever made (which is supposedly in the works), without a doubt, it would be made and distributed by FOX.
Disney would have nothing to do with a 'Family Guy Movie'.
Road to the multiverse
Watch it on Watchfamilyguy.tv
It's in season 8 if you're American and season 9 if you're British, and the episode's called 'Road to the Multiverse'
A Hero Sits Next Door
&
Peter's Daughter
Watch 'The Former Life of Brian' Family Guy episode and let Stewie explain it to you.
The Former Life of Brian
brian grobanio
No he was not. There was a character named Keith in the Partridge Family and the second actor who played Christopher was named Brian Forester, but Brian Keith was not in the Partridge Family. Brian Keith was in a show called 'Family Affair.'
no one knows he was lipsynching
Brian & Stewie's Emmy appearance & performance wasn't part of any Family Guy episode.
Saving Private Brian
All of the "Road to" episodes are primarily Stewie and Brian centered episodes, also of the episode titled Brian and Stewie
Saving Private Brian.
The evil Stewie clone does it in The Hand That Rocks the Cradle
Brian tell Stewie the truth when they are stuck in the bank vault in the episode Brian & Stewie
Season 3.
Your question is vague to say the least but you might be describing Season 5|Episode 7 Chick Cancer when Brian tells Stewie "it's not your fault"
No.
Road to Europe
Season 6 | Peter's Daughter
Its the episode where Stewie and Brian are on a Trip to Aspen, Co to get Rupet back called Road to Rupert.