Complex sentence: Robert Lachenay (1930-2005) was a French film critic and film crew member who was François Truffaut's childhood friend and the inspiration for the character "René Bigey" in the first two films of the Antoine Doinel film series.
Split into simpler sentences: Robert Lachenay (1930-2005) was a French film critic and film crew member. He was François Truffaut's childhood friend and the inspiration for the character "René Bigey" in the first two films of the Antoine Doinel film series.