Simplify the following text for a Grade 6 native English-speaking person.
Original: Under pressure , Eisenstein blamed Mary Sinclair 's younger brother , Hunter Kimbrough , who had been sent along to act as a line producer , for the film 's problems .
Simplified: Eisenstein blamed Mary Sinclair 's younger brother , Hunter Kimbrough , for the film 's problems . Kimbrough had been sent along to act as a line producer on the film .