History Film / LoveHappy

** Chico gets one in [[Film/ADayAtTheRaces with "Tootsie Frootsie Ice Cream"]].

* CallBack: Chico gets one in [[Film/ADayAtTheRaces with "Tootsie Frootsie Ice Cream"]].

* EverythingsBetterWithPenguins: Harpo hides behind a billboard containing a giant cigar smoking penguin (Kool cigarettes). We also see a live one in his hut who is dressed exactly like him (and can't stop squarking, presumably in reference to Harpo's being mute).

* OldShame: At the end of his March 8, 1950 radio episode of ''You Bet Your Life'', Groucho halfheartedly mentioned the film as "Harpo, Chico, and I tell a few jokes and do some acting. It's very educational." Groucho avoided mentioning the film in his 1959 autobiography ''Groucho and Me'', and considered ''A Night In Casablanca'' the Marxes' last film together, dismissing it as "a terrible movie" when he was a guest on the Today Show, mentioning it in his 1976 book ''The Groucho Phile: An Illustrated Life'', about one year before his death.

* EverythingsBetterWithPenguins: Harpo hides behind a billboard containing a giant cigar smoking penguin. We also see a live one in his hut who is dressed exactly like him (and can't stop squarking, presumably in reference to Harpo's being mute).

* Hammerspace: One scene features two goons roughing Harpo up then emptying his pockets looking for the diamonds. Instead they find (among other things) a ship's lifesaver, a mailbox, the leg from a store mannequin, a welcome mat, a babershop pole, an umbrella, a sled, an ice cube, a live puppy, the ''other'' leg of the store mannequin...

* MacGuffin: The Romanov Diamonds. The villains are after them (and so is Grouch) but they pass through various owners who mostly assume they're just paste jewelery.

* BillingDisplacement: MarilynMonroe has exactly one scene in the book lasting maybe a minute or two, with one line of dialogue. It is hard to find a poster for the movie which doesn't give the impression she was one of the stars of the movie

* TheDanza: Harpo's character's name in this movie is...Harpo

* HarpoDoesSomethingFunny: The entire movie might be this. Harpo even gets story credit.

* TheWoobie: Poor Harpo.

The final movie featuring TheMarxBrothers, released in 1949.

The movie plot was essentially thought up by Harpo himself, who later claimed it was intended as a way to help Chico pay off gambling debts. It is unique in that the brothers themselves seldom share scenes: Harpo gets the lion's share of the plot, followed by Chico in a supporting role and then Groucho rounds out with occasional scenes. One of these scenes famously introduces Creator/MarilynMonroe in her debut screen role.

* TheWoobie: Poor Harpo.

* BillingPlacement: MarilynMonroe has exactly one scene in the book lasting maybe a minute or two, with one line of dialogue. It is hard to find a poster for the movie which doesn't give the impression she was one of the stars of the movie

* TheDanza: Herpo's character's name in this movie is...Harpo

* HeWhoMustNotBeHeard: Played with. Harpo is central to this plot, and the villains try to interrogate him but "can't make him talk". He eventually manages to break free and find a phone whereupon he calls Chico for help... only to conduct the entire phone conversation using whistles and his horn (Chico seems to understand everything anyway due to his mindreading).

* HeWhoMustNotBeHeard: Played with. Harpo is central to this plot, and the villains try to interrogate him but "can't make him talk". He eventually manages to break free and find a phone whereupon he calls Chico for help... only to conduct the entire phone conversation using whistles and his horn (Chico seems to understand everything anyway).

* CallBack: Chicho gets one in [[Film/ADayAtTheRaces with "Tootsie Frootsie Ice Cream"]].

The movie plot was essentially thought up by Harpo himself, who later claimed it was intended as a way to help Chico pay off gambling debts. It is unique in that the brothers themselves seldom share scenes: Harpo gets the lion's share of the plot, followed by Chicho in a supporting role and then Groucho rounds out with occasional scenes. One of these scenes famously introduces Creator/MarilynMonroe in her debut screen role.

* HeWhoMustNotBeHeard: Played with. Harpo is central to this plot, and the villains try to interrogate him but "can't make him talk". He eventually manages to break free and find a phone whereupon he calls Chicho for help... only to conduct the entire phone conversation using whistles and his horn (Chico seems to understand everything anyway).

* CallBack: Chicho gets one in with "Tootsie Frootsie Ice Cream".

* EverythingsBetterwithPenguins: Harpo hides behind a billboard containing a giant cigar smoking penguin. We also see a live one in his hut who is dressed exactly like him (and can't stop squarking).

* He Who Must Not Be Heard: Played with. Harpo is central to this plot, and the villains try to interrogate him but "can't make him talk". He eventually manages to break free and find a phone whereupon he calls Chicho for help... only to conduct the entire phone conversation using whistles and his horn (Chico seems to understand everything anyway).

** Groucho's spiel about the hide of an elephant ("Have you ever tried to hide an elephant, by the way?") might [[Theatre/AnimalCrackers might also be one]].