Movies like this one ...
If you liked The Mad Miss Manton and are looking for another classic film that has a similar comedy/mystery/thriller/newspaper vibe, I'd suggest Front-Page Woman with Bette Davis and George Brent. I don't often heard people talk about it as one of Bette's greatest films but I love it! It doesn't deserve being so obscure.
Davis and Brent are reporters for rival newspapers and they have a little romance going, but Brent is such a condescending jerk that they end up in a circulation race as each tries to dig up the clues and solve the latest sensational mystery.
Directed by Michael Curtiz, most famous for Casablanca.
Janet! Donkeys!