the dinner scene from "Crooklyn", one of my favorite movies.
and
creepy @ss scene from "Requiem for a Dream", another one of my favorites (i havent watched it in forever though, for obvious reasons)
and while youtube doesnt have it, maybe that means its not awesome enough. but it's from "Father of the Bride", where Steve Martin and Diane Keaton are driving down the street and all the parents and children on his side of the street are godawful, but on her side, the kids are all peaceful.
ok, last one, the end of "The First Wives Club" where the ladies are belting out "You Don't Own Me."