Mine too! Saw it about 100 times via the magic of HBO in the 1980’s. I loved to sing I will gladly pay you Tuesday for a hamburger today to my kids when they were young. They are teens now. Still break it out once in a while to their great embarrassment!
I strongly dislike that movie, but Duvall's performance was excellent in it.
I have memories of strongly disliking that movie as well, but I haven't seen it since I was a little kid.