i was so crazy searching for the movie that thing you do. sadly i couldn't find it. HOWEVER, i got these two videos. it's bits from the movie. it's really nice. one is at the high school dinner i think where they debute the song for the first time. the other one is at the open to get themselves into the music chart. they made it at no.49. have fun watching it :)
i'm still trying to find the whole movie :)


at the high shcool dinner.


at the open to make it to the music chart.


this is the possible trailer of the movie.