I enjoyed the movie very much.
I agree Nick. I had pause with that bit of basic physics as well. There are always technical flaws in every movie. I got by that one and Sandra's perfect hair in zero G because, in whole, it was so good and thus forgivable.
It was a really good "on the edge of your seat" movie for a good 75 minutes with just the first 10 being calm working in space, and the last 5 being of a similar pace (don't want to give anything away).
M60s, VP180, VP150, QS8s, SVS 20-39PCi, HTPC, JVC RS45, Onkyo TX-NR709, Shakers