 Later , Charlie finds Liam high on heroin with <unk> . Charlie kicks the <unk> out , and tells Liam that he 's done with the band . Liam says to Charlie that he , Liam , is Drive Shaft , and that nobody knows who the bass player ( Charlie ) is . He goes on to tell Charlie that without the band , Charlie is nothing , which spurs Charlie to use heroin for the first time . Years later , Charlie visits Liam 's house in Australia and wants Liam to rejoin Drive Shaft for a comeback tour . Liam declines , but the band can 't do the tour without him . He criticizes Charlie for still using drugs , and Charlie blames Liam for getting him started with drugs . Liam asks Charlie to stay with him for a few weeks , saying that Sydney has some good rehab programs and that he can get Charlie help . Charlie angrily leaves , saying he has a plane to catch . 
