You can keep your Harold and Maude and even your In Laws (original version), this is the best ever. I was tremendously saddened when the first VHS copy I bought included a different song during the scene when Navin finds his rhythm than was featured in the theatrical release. I think it's back in more recent versions, though.
I made my 2 sons watch the Jerk and they laughed off their seats (they are imbalanced like me) - it still holds up well after all these years - thanks for making me laugh while growing up (and now still)!!!
THE THERMOS SONG! Oh I'm picking out a thermos for you. Not an ordinary thermos for you, but extra best thermos you can buy with vinyl and stripes, and a cup built right in. I'm picking out a thermos for you and maybe a barometer too. And what else can i buy so on me you'll rely a rear end thermometer too!
No matter what else you learn from life, learn from Navin's experience and try to learn how to buy a really good thermos. Because really, that's all you need. That and maybe a belt if you have those pants that fall down a lot.