Trivia / Doctor at Large

• Blooper: The letter Sir Lancelot gives to Dr. Sparrow is folded into four at first, yet later is folded into three.
• Completely Different Title:
  • Belgium/France/Russia: Doctor on the Loose.
  • Brazil/Portugal: Don't Say, Doctor.
  • Denmark: Little Doctor in Trouble.
  • Germany: Help, the Doctor is Coming!.
  • Finland: Doctor's Green Stubble.
  • Italy: Doctor on the Move.
  • Netherlands: Doctor in Freedom.
  • Spain: A Phenomenal Doctor.
  • Sweden: The Doctor is Loose.
  • Turkey: Novice Doctor at Work.
• Creator Backlash:
  • Dirk Bogarde hated the film, and only returned to the series as he was under contract. He also thought the film would struggle without Kenneth More returning as Grimsdyke.
  • Richard Gordon wasn't impressed by the saucier dialogue and situations in this film compared to Doctor in the House (1954).
• Deleted Scene: A line where it is mentioned that Nurse McPherson can "make the patient without disturbing the bed" was cut from the script.
• DVD Commentary: With British comedy historian Robert Ross talking to Muriel Pavlow (Nurse Joy Gibson) and Donald Sinden (Dr. Tony Benskin).
• Fake Irish: O'Malley was played by John Chandos, a Scottish actor.
• Posthumous Credit: Ernest Jay died before the film was released.
• Referenced by...: A sign advertising the film can be spotted in the Made-for-TV Movie Night in the City.
• Uncredited Role:
  • Carol Richmond as Eva.
  • Barbara Roscoe as Alice.
  • Donald Pickering as Cyril.
  • Abe Barker as Old Ives.
  • Molly Urquhart as Mrs. Ives.
  • Cyril Chamberlain as a police constable.
  • Author of the Doctor novels, Richard Gordon, as an anesthetist.
  • We don't find out who plays Charlie Whittle, Seamus, or Muffin.
• Written by Cast Member: The screenplay was written by Nicholas Phipps, who also plays Mr. Waylands.
• You Look Familiar:
  • Shirley Eaton and Maureen Pryor play different roles to the ones they had played in Doctor in the House (1954).
  • Michael Medwin, Martin Benson, and Abe Barker play different roles to the ones they had played in Doctor at Sea.
  • Geoffrey Keen, George Coulouris, and Cyril Chamberlain return for their third unique roles in the series.

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