Hi everyone. So I guess this info can be shared here for the people who wondered what the name of Sharpay and Ryan plays names were. These posters are feature all over HSM3 in the background and I've compiled them and try to get a description from it's poster. Hope you guys like this.
Troy and Gabriella
Twinkle Town — Part of the story of High School Musical's plot this play was the 'high school musical' to be produced during the film and stared by Troy and Gabriella after getting the part with "Breaking Free" callbacks performance,
Sharpay and Ryan
Sibling Piracy — The best poster available from production photos of the movie. The poster display the date of the play on East High Theater on May 12 - 18
Goodbye, Mr. Kirchner — A novel inspired play set in Paris, France. Text in the poster reads, "Staring Sharpay Evans with Ryan Evans East High Auditorium Jan. 4-22"
A Night On Curtain Street — Detective inspired play. Poster text reads, "Sharpay Evans in A Night On Curtain Street with Ryan Evans. Music by Kelsi Nielsen".
Spring Thing — Played by Sharpay Evans. This poster first appeared in High School Musical 2 behind the scenes rehearsals photos
Final Descent — A Plane inspired play with Sharpay as an flight attendant with a full pink outfit. Poster reads, "A New Musical Comedy [...]. East High Theater October 8.
Louis Kablooey! — A 18th century inspired play played by Sharpay Evans"
The Bells of St. Helens" — Sharpay Evans play with Alpes inspired plot
Midnight Tropicale — A summer/beach musical. This poster appears in the taxi dressing room in "I Want it All"
Man of La Jolla — Ryan Evans' solo play that features a medieval age look from its poster. Some of the posters are spotted during High School Musical 3.
A Ryan in Winter — Another poster that is visible throughout the movie inside East High. This play Ryan plays the role of a King or a Knight. The poster shows the information Music and Lyrics by Ryan Evans.
Awhile in the Nile — Egypt inspired play
*Unknown Title [...] Baby! — small part of the poster found from this one