Complex sentence: He had not been listed in the film's credits, and was not acknowledged by director Christine Lahti in her acceptance speech--a full-page advertisement was later placed in "Variety" apologizing to Kinsella for the error.
Split into simpler sentences: He had not been listed in the film's credits, and was not acknowledged by director Christine Lahti in her acceptance speech. A full-page advertisement was later placed in "Variety" apologizing to Kinsella for the error.