This is the first (and last) time the Marx Brothers worked with material not specially created for them.
During salary negotiations with R-K-O, erstwhile member Zeppo Marx represented his brothers, threatening to rejoin the group if their demands weren't met!
The only film the Brothers made with R-K-O.
The original play was adapted into a Marx Bros. screenplay by Morrie Ryskind, who co-wrote the stage and screen versions of Cocoanuts and Animal Crackerss and also co-wrote A Night at the Opera. Much of the original play's strong language had to be toned down for the screen, into milder expletive such as "Jumping butterballs!"
‘Room Service’ opened at the Cort Theater on May 19, 1937 and ran for 500 performances (without the Marx Brothers).