SuckSeed (2011)

Cast
Pachara Chirathivat as Koong
Jirayu La-ongmanee as Ped
Nattasha Nauljam as Ern
Thawat Pornrattanaprasert as Ex

Trailer

Synopsis
As a young boy, Ped was a geeky kid who held a crush on classmate Ern. When Ern moved away with her family to Bangkok, Ped was crushed.
Now in high school, Ped and Ern are reunited after she backs to her hometown and attends the same school. Ped's best friend Koong then hatches a plan to get the attention of Ern and other girls. They will form a rock band! The boys are in for a bigger surprise when they learn Ern is a talented guitarist and joins their band. A talent show competition looms ahead for the band, while Ped and Koong find themselves vying for the attention of Ern.