● It was the second association of the Kamal Hassan and Crazy Mohan combo after the immensely successful Apoorva Sagotharargal (1989).
● MMKR was a Diwali release of 1990 and incidentally there were 5 other films releasing the same day with Ilaiyaraaja as the music director - Amman Kovil Thiruvizha, Mallu Vetti Minor, Puthu Paattu, Chatriyan and Sirayil Sila Raagangal
● Sundari Neeyum song was picturized by playing the song at twice the original speed in order for Kamal and Oorvasi to lip sync correctly.
● The song Sundari Neeyum was supposed to be sung by KJ Yesudas but dates played foil eventually leading to Kamal singing himself. Infact in an interesting tale, YG Mahendra actually congratulated Yesudas on the song and when KJY quipped that credit should go to Kamal, it left the former completely stumped.
● MMKR was perhaps the first Tamil or even Indian Film to feature a laptop as early as 1990.
● It was the first film to have 'Face Morphing Technology' in Tamil Film Industry.
● The Bheem boy character who is the body guard for Kamal Hassan is played by Praveen Kumar Sobti, an Indian athelete who was 6'7" and a Double gold medalist in discus throwing in the 1966 and 1970 Asian Games.
● There were 2 songs in the movie which were not shot but part of the audio records viz Aadi Pattam Thedi sung by Mano, Chitra & chorus and Maththa Poovu Oru Penna rendered by Chitra, both penned by Vaali.

