Pairing likable actress Kristen Bell (“Forgetting Sarah Marshall”) and the funny Melissa McCarthy (who was hilarious in last year’s “Spy”) as the title character in “The Boss” would seem like a perfect setup for yet another instant hit. Right? Wrong. The result is a painfully unfunny film and that’s putting it mildly. McCarthy plays a very rich “boss” who finds herself in prison for insider trading. Upon her release, only her former assistant (Bell) is willing to help her get back on her feet. Pretty routine stuff. The film is also rude and crude, something McCarthy is used to by now. But the material this time around isn’t worthy of her at all and I honestly couldn’t wait for it to end. I sitll admire her performance in “Bridesmaids”, “The Heat” and “Spy”, and I hope somebody will devise a better vehicle for her talents in the future. As for “The Boss”, I’m already trying to forget about it.