Not all films are good with marrying the fun with the mundane (Fundane?), but this one happens to do it. Limitless is an amusing drug movie with as little sense as your neighborhood junkie panhandling for change outside the liquor store (but perhaps with a little less irony).
Bradley Cooper is a struggling writer with a drinking problem. On the street one day, he runs into his ex-brother-in-law who use to be a drug dealer, but now works for a big pharmaceutical company. Because he is a ex-drug dealer with a heart of gold, he gives down-and-out Bradley a clear pill for free, but doesn't tell him what it does. Bradley takes it a little later to find this pill is able to give him access to 100% of his brain power. For the next 12 hours or so, he is able to accomplish everything the rest of us poor schlubs could only dream of getting done, but then it wears off. Through some not very well explained twists and turns, Bradley gets his hands on a pile of these clear pills and we are off and running. By the way, at some point in the plot, Robert De Niro shows up as the heavy (Do I sound like I'm 80 using this expression?) to pick up a paycheck and do a tiny bit of acting too.
So watch it for the drug trips (which are well done), but don't pay attention to the acting or plot too much or it will ruin the movie for you. By the way, I am planning on getting around to writing a screenplay called Limited. It's about a guy who smokes too much weed and just ends up watching a lot of movies at home. One day, one day.
By the way, just watch the trailer and you've pretty much seen the entire movie.