oh brother

You're an attorney employed by a movie studio, and you're asked to draft a letter to the Marx Brothers. The working title to the movie they're making is somewhat similar to a movie that your studio released five years earlier. It's your job to ask him not to use that title. You get a letter back, signed by Groucho Marx, which includes the following:

You claim that you own Casablanca and that no one else can use that name without permission. What about “Warner Brothers”? Do you own that too? You probably have the right to use the name Warner, but what about the name Brothers? Professionally, we were brothers long before you were. We were touring the sticks as the Marx Brothers when Vitaphone was still a gleam in the inventor’s eye, and even before there had been other brothers—the Smith Brothers; the Brothers Karamazov; Dan Brothers, an outfielder with Detroit; and “Brother, Can You Spare a Dime?” (This was originally “Brothers, Can You Spare a Dime?” but this was spreading a dime pretty thin, so they threw out one brother, gave all the money to the other one, and whittled it down to “Brother, Can You Spare a Dime?”)

and also

It wouldn’t surprise me at all to discover that the heads of your legal department are unaware of this absurd dispute, for I am acquainted with many of them and they are fine fellows with curly black hair, double-breasted suits and a love of their fellow man that out-Saroyans Saroyan.

I have a hunch that his attempt to prevent us from using the title is the brainchild of some ferret-faced shyster, serving a brief apprenticeship in your legal department. I know the type well—hot out of law school, hungry for success, and too ambitious to follow the natural laws of promotion. This bar sinister probably needled your attorneys, most of whom are fine fellows with curly black hair, double-breasted suits, etc., into attempting to enjoin us. Well, he won’t get away with it! We’ll fight him to the highest court! No pasty-faced legal adventurer is going to cause bad blood between the Warners and the Marxes. We are all brothers under the skin, and we’ll remain friends till the last reel of “A Night in Casablanca” goes tumbling over the spool.

It's no wonder at all that a link to this letter is listed under "related resources" on the Chilling Effects Clearinghouse web site.