I love sci-fi. I enjoy envelope-pushing, out-of-this-world plots. But they have to be at least somewhat credible for me to suspend disbelief and enjoy the ride. This science in this movie was so poorly researched, so incredibly goofy, so downright ridiculous, that I could not enjoy the really good special effects. Come on, author and director, couldn't you have done better than this? It starts with a scientist who still scrawls on blackboards and ends with -- well, I don't want to spoil it for you. The characters in this movie are definitely not scientists or astronauts or researchers; they are unprincipled and overly dramatic caricatures of these professions. The audience who buys the silly concepts in this movie must really be suckers for nonsense. Sorry to be so blunt - I for one will be sure to stay away from movies written by Christopher Nolan.