A balancing act.
Seems like many on here are being tough on this movie. I found it an interesting amalgam of indie/stoner movie/comedy/romance/spy thriller/action. I think it was meant in good fun and I was watching it with that mindset.
That's a hard balancing act to get right, and while it may not deliver as much in each category as a movie geared to a single genre, I thought it hung together well enough and I enjoyed the two leads at the center of it.
It had some great moments.
The closest thing I have seen to this, but that works in a different way is Red, for the combo of spies, action, and humour.
You can't be more horrific than life itself. - Francis Bacon