It starts with a paradox right off the bat!
Ok, I know there are all kinds of "time paradox" or "time plot holes" posted in here, but the one that really takes me out of the movie is....
When he checks online about his huge paycheck and sees he has $92,000,000 in an account he goes to do the paperwork and get some cash and set up his investments etc. He is told he forfeited his shares 4 WEEKS AGO! How could the online account show the money he gave up a month prior? Shouldn't it have had an balance of ZERO?
BAD plot hole there and it just goes on and on and on......
If they had simply had him look at his ORIGINAL printed certificate with his balance and THEN find out the bad news it would have made more sense.
What it does do is make him think as to WHY would he do that, and the weird stuff in his envelope creates a mystery for him to solve. Forfeiting almost $100,000,000 is a great way to give yourself a slap in the face to "wake up" and figure it out!!
They created their OWN "PLOT HOLE" that was just a stupid "script" mistake. But it takes you out of the movie in any regard.
To make this, albeit FUN, movie better they should have had a bunch of writers get together, brainstorm and tighten the script, finding things like the subject of THIS post and cleaning the script up and making it a better movie!