Complex sentence: Directed by Gavin Hood, the film is a prequel/spin-off to the "X-Men" trilogy, focusing on the violent past of the mutant Wolverine (Hugh Jackman) and his relationship with his half-brother Victor Creed (Liev Schreiber).
Split into simpler sentences: Directed by Gavin Hood, the film acts as a prequel/spin-off to the "X-Men" main trilogy. The plot focusing on the violent past of the mutant Wolverine (Jackman) and his relationship with his half-brother Victor Creed (Schreiber).