Plotholes

First, I love the movie. This is exactly my kind of movie; just plain awesome sci-fi. Even though it doesn't really affect my appreciation of the movie as a whole, I did notice a couple problems that I didn't see mentioned yet. I'm only mentioning them for the discussion; I still love the movie in spite of them:

1: How did Nick know that Troy was super-human? He left assuming he was a regular guy, and barely had any additional info about his (aside from the fact that he was taking over the ship). I like that he came prepared, but it seemed like he should have been caught somewhat off guard.

2: Sorry, but you can't contain 9th dimensional matter in a 3 dimensional casing, as the movie explains. Here are a couple examples to demonstrate this:

(for these examples, ignore the "strength" of the casing, and focus on it's ability to "get in the way" of the supposedly encased object.)

let's take it down to our scale, containing a 3 dimensional object in a 2 dimensional casing. what would this look like? well a good example of a 2 dimensional casing is a hula-hoop, and a good example of a 3 dimensional object is a person. you can't contain a person with a hula-hoop... if you were a 2 dimensional object, then yeah the hula-hoop would contain you super effectively, as long as you were both on the same plane.

another example would be containing a 4 dimensional object in a 3 dimensional casing. this is a little hard to imagine, but, if we use time as the 4th dimension, then a 4 dimensional object is one that has different parts of itself existing at different times (all continuous), and that can move forwards and backwards in time at will. we would only see a three dimensional "slice" of the object at any given time. if it slid forwards or backwards in the 4th dimension, the slice we could see would change in place. you could encase the currently visible 3d "slice" in a closed box; you would have prevented that slice from moving in our 3 dimensions, but the object could still move freely along the fourth dimension and the "slice" that you encased could still change. it could even move "around" the object in the fourth dimension by moving to a time in the past or future where the box is no longer there, then changing it's 3d position, then coming back to our present. to us it would have disappeared from the box, and then reappeared outside of it. (this is analogous to standing in a circle drawn on the ground, and stepping over and out of it).

this gets even worse when you increase the dimensional difference; ex: containing a 4th dimensional object in a 2 dimension casing. the hula-hoop is almost trivial in comparison to the 4th dimensional object.

or containing a 3 dimensional object in a 1 dimensional casing, that is, a single bar, like a lamp or a piece of string. it doesn't even begin to restrict our movement unless we go out of our way to bump into it.

on step further you could try containing a 3 dimensional object in a 0 dimensional casing. (that is, say, a single immovable ball-bearing). at this point, its ability to restrict our movement has become effectively zero. in the unlikely event that our path from some arbitrary point A to some other arbitrary point B just so happens to cross the location of the immovable ball-bearing, it is beyond trivial to just go around it.

extending this to containing 9 dimensional matter in a 3 dimensional casing is impossible to articulate, but you can see how the 3d casing would be completely useless at containing the matter.

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astrolupine: even with makeup, you can't make an actor's face look like a chair