Gravity with Gravy

To be fair, Gravity was not a good movie. Much like the space it portrayed it was full of space itself. It felt empty at it's core with one of the smallest casts for a major production. The two main characters (out of three chracters total) felt distant from each other even while sharing the most intimate possible details.Minutes were spent just watching Sandra Bullock trying to breathe. Plus, while trying to be as visually reaslitic as possible, the film was still farfetched. Sandra Bullock escapes an exploding spaceship (SPACESHIP!) to make it to a second exploding spaceship (SPACESHIP!), which she then has to escape and make her way to a third exploding spaceship (SPACESHIP!) which much like Goldielocks and the Three Bears is just the right kind of exploding. The ending was a little agrivating as well. You were already out of your seat and walking back towards your car before you realized how angry you were.
But did it even happen?
Given the unlikely outcome of the ending (she safely lands on earth after supposdely exhausting her retrorockets) and her previous encounter with a halucination, was this all just a dream?
She confesses earlier to George Clooney (Batman!) how she would drive around and listen to the radio, because that's what she was doing when she found out her loved ones had died. Later, she listens to the radio as she contemplates giving in to the cold of space before she hallucinates Clooney showing up outside the window of her escape pod. Clooney is just an oxygen deprived dream she's having, so is everything a dream then? The backstory about her losing her family reminded me of the original ending to Descent where the lone survivor halucinates that it's her dead daughter's birthday while the Gollum-things narrow in on her.
Then there's the scene where she tries to get Huston on the radio and ends up listening to a Chinese man sing a lulaby to his grandaughter and make doggy sounds. WTF was that? What does Carl Sagan have to say about that shit? That ties back in to her and the car and the radio. Really the whole movie is about her listening to the radio.Even Clooney makes his exit while listening to country music on the radio. For all we know he's listening to the same song she was when her life-changing moment happened. He could just be a representaion of her own psyche.