'High School Musical' Star Corbin Bleu Sued Over HUGE Box Office Bomb

Corbin Bleu helped make "High School Musical" a huge hit, but the 22-year old star just got sued over a movie he made which raked in a whopping $463 its opening weekend.

The movie "Free Style" -- which clearly you probably never saw -- opened in 2009 with Corbin as the star.

The movie's financiers filed a lawsuit today in Los Angeles Superior Court against Corbin, Samuel Goldwyn Films -- and many others -- claiming Corbin failed to promote the project as promised.

Third Eye Capital and Strative Capital claim Corbin was contractually bound to promote and publicize the film -- but they claim he "refused and failed to perform those services" ... and as a result the flick bombed.

How do you define bomb? According to the suit, "Free Style" made $141,108 in just over a month -- and a worldwide total of $1,321,508. The financiers say they put up more than $8.5 million.