Yamao Yamada is the "manager" of the dance school Pretty Top and is strange just like Penguin-sensei. He carries Penguin-sensei on his shoulder, and the only thing he says is "Yamada-desu". In rare cases, Yamada does say other things. Yamada has brownish skin and big muscles. 

(Source: Pretty Rhythm Wiki)

Prism Stars are performers on the new popular ice show, Prism Show. They are superidols whose techniques, singing and fashion sense are a cut above all others. Aira and Rizumu are two Prism Stars whose goal is to become the best, the Prism Queen. However, the road to success is bumpy. 
(Source: AniDB)

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Three years after the events of "Pretty Rhythm: Aurora Dream," Aira, Mion and Rizumu have grown up and tutor a new group of aspiring idols: Karin, Reina, Mia and Ayami, who form the Prizmmy&#9734;. Teenage girls from Korea, named Somin, Shiyoon, Haein, Chaekyung and Jae Eun (who are the PURETTY), appear as a rival group. 

The new Pri☆Chan Land amusement park has opened near the Prism Stone shop. It is a semi-virtual world where the mascots of idol teams come to life, and even perform as idols themselves. Park manager Meganii announces the Illuminage tournament, where idols compete to become princesses of each area of Pri☆Chan Land, and at the finale one team will be chosen as Illuminage Queens. With the help of their mascots, Miracle☆Kiratts, Meltic StAr and other teams compete to become the Illuminage Queens.
 
(Source: Anime News Network)

PriPara Movie: Minna Atsumare! Prism☆Tours is the film based on and starring the characters from PriPara. The film first began showing in theaters across Japan from March 7th, 2015. The plot focuses on Laala Manaka finding out about Saints' top idol journey, and aside from the PriPara performances, the movie also features the journey of characters across all the Pretty Rhythm series.

At some point in the movie, the characters are given a choice of four doors to go through. At this point, the movie diverges into one of 4 routes depending on what the audience chooses. Each route recaps different aspects of the previous Pretty Rhythm series, mainly reintroducing the different characters and their performances. However, Laala and friends only get a chance to enter one door at a time, meaning the film must be watched four times to view each door choice.
 
(Sources: PriPara Wikia and Wikipedia)

The film will compiles Prism Show scenes from all three television anime series.