Complex sentence: In 1995 he appeared in Ian McKellen's updated film of Richard III-his father Sir Cedric Hardwicke had appeared in the Laurence Olivier 1955 film version.
Split into simpler sentences: In 1995 he appeared in Ian McKellen's updated film of "Richard III". His father Sir Cedric Hardwicke had appeared in the Laurence Olivier 1955 film version.