This film, inspired by a possibly fabricated account, follows two rappers from Dundee—Gavin (played by Séamus McLean Ross) and Billy (Samuel Bottomley)—as they attempt to leave behind their dull call-center jobs and share their unique style of street poetry with an industry that isn't particularly interested. They’ve exhausted conventional routes to recognition, reaching a point where even record label employees are refusing to answer their calls. Then they come up with an idea: why not claim to be from California? It seemed simple enough, but their initial attempt doesn’t get them far. After seeing an advertisement, they decide to refine their fabricated backgrounds and try again. Soon, ‘Silibil ’n Brains’ find themselves on a London stage, noticed by scout 'Tessa' (Rebekah Murrell). She secures them an interview with her boss (James McAvoy), who decides to give them a shot. The catch? Their original intention was to reveal the hypocrisy and superficiality of the entertainment world before returning home, where Mary (Lucy Halliday) awaited Billy. However, they quickly become immersed in a lavish lifestyle filled with drugs, alcohol, adoration, and groupies, gradually drifting from their initial plan and from each other. When Mary visits them, and a television appearance fails to meet her expectations, it becomes a critical moment for the pair, as their performance at Glasgow’s Barrowland Ballroom appears poised to be their defining event. I felt Ross gave a strong performance; his character grappled with reconciling his ambitions with his affection for his best friend, who he recognizes is increasingly committed to another path. He also has good chemistry with Bottomley, but the story progresses in a way that limits their screen time, and the critique of the industry becomes dominant. In this regard, the film exposes the exploitative nature of an industry that supports numerous hangers-on and untalented individuals while the artists themselves earn relatively little despite doing all the work—though this isn’t particularly original or groundbreaking. The movie has a certain appeal, and some of their actual rapping is lively, clever, and amusing, but I didn't feel there was enough development of the characters as it moved quickly toward an abrupt ending. It's enjoyable, though not quite what it could have been.

Source on TMDB