It's solid. Rachel McAdams, Harrison Ford, and Diane Keaton are all outstanding. The funniest movie you'll ever see? No but I guarantee you'll have more than just a few laugh out loud moments in the theater. The title doesn't exactly tell you what it's about so if you're curious, here is my summary.
An executive news producer is let go and then gets a gig at a network in NYC. She has a limited amount of time to get the ratings up for it's morning program "Daybreak" up or else the network will cancel it. Bringing in the reporter who she has idolized since childhood sounded like it would be the obvious fix, not so much. She is more than disappointed to find that her childhood idol is really an arrogant jerk and is the last person on the planet who could ever become a team player. I'm not easily amused but I laughed HARD watching Diane Keaton and Rachel McAdams spar with Harrison Ford. You'll enjoy this, so go see it!
One other thing. Always pleases me when a movie also has a good soundtrack. This one does. Here are my favorite songs from the movie: