Complex sentence: In later life he proudly claimed to have never rejected any role offered to him, which explains his participation in three infamous Edward D. Wood, Jr. films: "Glen or Glenda", "Jail Bait" and "Plan 9 from Outer Space".
Split into simpler sentences: In later life he proudly claimed to have never rejected any role offered to him. He played roles in three now infamous Edward D. Wood, Jr. films: "Glen or Glenda", "Jail Bait" and "Plan 9 from Outer Space".