The Last Starfighter (1984)

"Alex Rogan was a small town boy with big dreams. But in his wildest dreams, he never suspected that tonight he would become The Last Starfighter."

Video game expert Alex Rogan finds himself transported to another planet after conquering the video game The Last Starfighter, only to find out it was just a test. He was recruited to join the team of best Starfighters to defend their world from the attack.