You don't have to be a 'rocket scientist' [=you don't have to be unusually smart] to understand the instructions.
Sales 'rocketed' from 1,000 units last week to 5,000 units this week.
The job is challenging, but it's not exactly 'rocket science'.
(..) Like that young fellow out there named Vector. He just stole a pyramid! I've got it. I've got it. So, as far as getting money for the rocket... Get the shrink ray, then we'll talk. Suckers! Suckers! We got it! (..)2010 Despicable Me
(..) Shoot! So difficult, sometimes, to get the piranha back inside of my... Mr. Gru, Mr. Perkins will see you now. So, all I need is money from the bank to build a rocket. - And then, the moon is ours. - Wow! Well, very nice presentation. I'd like to see this shrink ray. Absolutely! Will do. (..)2010 Despicable Me