Complex sentence: Superstar, drew the ire of Chuck Jones, who responded by writing a letter (dated 11 December 1975) and enlisting Tex Avery to make annotations (dated 22 December 1975).
Split into simpler sentences: Superstar, drew the ire of Chuck Jones. Jones responded by writing a letter (dated 11 December 1975) and enlisting Tex Avery to make annotations (dated 22 December 1975).