You don't feel like watching Cries and Whispers every evening.
Some nights, particularly after a tough day at work I just want to come home and watch something uncluttered and life affirming. But that doesn't mean I want to put myself through "The Blind Side" or some such sentimental schmaltz. There are some movies that manage to be emotional without being well.. shite.
Off the top of my head I'd put Up, Wall-E, Finding Nemo and Toy Story 3 there from Pixar. Cinema Paradiso is always a very good one to revisit. Decent sports movies, I find are also quite good for this purpose. Moneyball is one relatively recent example.
What movies would you put under this category?