If your purpose is to summarize the plot in 90 seconds, you hit the nail on the head. However, I personally felt like the quality of the movie was reduced by its heavy-handed political statements. (We are the 99! Free Healthcare!) What could've been an epic sci-fi universe turned into an okay satire. What I really wanted to see were the humans on earth disabling the Elysium defense systems with the super secret information and using a tractor beam or towing cables to drag Elysium into the pacific ocean. THAT would've been awesome.
Anyways, 4.5 stars because you did a bang up job of a summary. Could've expanded more on what the information contained and why it was so important