In Time (2011)

In Time has a neat premise (time literally is money), a single interesting scene (because no one ages after turning 25, Justin Timberlake's "mom" is played by an actress who would normally be a girlfriend, but they have the same interactions as mother-son), and the rest is a mess.  

• I'm supposed to believe in a near-future Earth** that has genetically implanted clocks that can transfer time on contact, but all other technology appears stuck in the 70's... because, you know, widespread smartphone use in such a world would imply that Justin Timberlake's mom could simply call him and have him wire her some time, which would remove most of the tension from the movie (as currently constructed; bringing the rest of the tech more in line with the premise simply means you have to think a little bit harder when writing your story).  
• I'm also supposed to believe that the very rich have left their clocks with the design "feature" such that time can be stolen from them when they're unconscious.  
• I'm also supposed to believe that someone who has a million years to give away hasn't kept a year, a month, even a *day* for themselves as a safety net -- maybe the idea here is that Justin gives it nearly all away because that's the only way he can get thrills now; in fact, that could be a really interesting concept to explore, but if that was intended, it doesn't come through.

** The Wikipedia article says 2169 [citation needed].  I really don't believe that Cillian Murphy's car would look like Gene Hackman's from the French Connection, 200 years earlier.