Simplify the following text for a Grade 10 native English-speaking person.
Original: Eisenstein and his entourage spent considerable time with Charlie Chaplin , who recommended that Eisenstein meet with a sympathetic benefactor in the person of American socialist author Upton Sinclair .
Simplified: Eisenstein spent a large amount of time with Charlie Chaplin . Chaplin recommended that Eisenstein meet American socialist author Upton Sinclair who Chaplin thought might help Eisenstein .