The Secret Agent's Blunder, also translated as Resident's Mistake, is a 1968 Soviet spy film directed by Venyamin Dorman. It is the first of four films based around the same character, the spy Mikhail Tulyev, played by Georgy Zhzhyonov. The sequel, Secret Agent's Destiny was released in 1970, with Resident Return in 1982 and End of the Resident Project in 1986.