xhonzi said:

And C3PX, Brazil? Don't get me wrong, it's one of my top 10 fave's, but what about it makes it a Christmas movie?

One of the first scenes in the movie is the family sitting around the Christmas tree, the mom is telling them about Santa, when suddenly the authorities break down through the ceiling, grab their dad, toss him in a sack and away they go. Classic Christmas movie material right?

Okay, yeah, but seriously. The film takes place around Christmas time so we often see Christmas things going on in the background. Christmas music can often be heard in the background. Then there is the above mentioned scene, and towards the end of the film Sam sees imagines seeing his fathers old friend dressed as Santa Claus. So visually, the film just fits well with Christmas. But mostly, the whole anti-consumerism theme (like Sam's mother and her friends constantly obsessed with mindless rubbish) just really strikes a chord with me this time of year, which is ultimately why I include it as my one essential Christmas movie every year.