- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Curtis is one of a rare group of actors who has appeared in both the original Kirk-era movies and in a later series, having also appeared in the two part "Gambit" episode of ST:TNG as renegade Vulcan Tallera.