According to Richard Blood (Ricky Steamboat), Randy Savage planned every single move in their match. Wrestling matches are usually improvised except for the finish. But Savage was such a perfectionist that he wrote every step in the match on papers and faxed them to Steamboat for him to memorize.
WWE claimed that Hogan slamming André here was the first time André had been slammed. However, Hogan had slammed André in their match at Shea Stadium on August 9, 1980, which is included on the Hulk Still Rules DVD. Butcher Vachon slammed André on September 1, 1972 at Soldier Field in Chicago, IL during a handicap match with André vs. Vachon and Larry Hennig. Shozo Kobayashi slammed André in 1971. Stan Hansen and Antonio Inoki both slammed André in separate matches in 1981. UWA (Mexico) Heavyweight Champion El Canek slammed André en route to defeating him in a Best-2-out-of-3-falls match at the El Toreo in Naulcalpan, Mexico on February 12, 1984. Bruiser Brody slammed André in Dallas in 1980. Kamala body slammed André once in the old Mid-South promotion.
André the Giant lost his first WWE match in over 15 years on this night. He had lost matches to Antonio Inoki in Japan in June 1986 and to the Sheik (Ed Farhat) in Toronto in 1974, but neither of those matches are counted in WWE canon.
Bobby "The Brain" Heenan was so sure André the Giant (whom he managed at the time) was going to beat Hulk Hogan for the WWF World Heavyweight Championship that he demanded to have a new world heavyweight title belt made that would fit André's waist. A belt was made (which accordingly cost $37,000 to make), and it was shown off a few times before WrestleMania III. That night, Hogan beat André to retain the title, so André never wore the new belt, and it was never shown again.
During the WrestleMania 2000 opening show entitled WrestleMania All Day Long, which went through the history of all of the previous WrestleManias, Vince McMahon claimed that as he was about announce "Welcome to WrestleMania III!" he felt the spirit of his father Vincent J. McMahon who had passed away three years earlier.
Aretha Franklin was stuck in traffic moments before WrestleMania III went on the air. Breaking free of the traffic jam, she rushed to the Pontiac Silverdome and performed "America the Beautiful" without a sound check.
Midget wrestler Little Beaver was forced to retire from in-ring action after this event when King Kong Bundy body slammed him then dropped an elbow on him. When Little Beaver died in 1995, Bundy said in a 1998 interview he hoped he wasn't responsible for his early death, not wanting that on his conscience.
Due to the record breaking crowd anticipated, wrestlers were told to be at the venue, two and a half hours before anyone else, to avoid the heavy traffic. After the event's conclusion, wrestlers had to wait three and a half hours, before they could leave the Silverdome.
PPV debuts for the Honky Tonk Man, Tom Zenk, Rick Martel, the Rougeau Brothers, Harley Race, Billy Jack Haynes, the Haiti Kid, Little Beaver, Lord Littlebrook, Little Tokyo, Danny Davis, Butch Reed, Slick, Koko B. Ware, Dino Bravo and the Killer Bees.
Negativland sampled "Hacksaw" Jim Duggan saying "Volkoff, understand one thing. You're not singing that Russian National Anthem because this is the land of the free" on their "Presents Over The Edge Vol. 7: Time Zones Exchange Project" album under the title "Russian National Anthem."
During this era, 'King' Harley Race and Hercules Hernandez are both members of the Heenan Family, with Bobby The Brain Heenan serving as their manager. Years later in the WCW promotion, in 1992, Race would manage Hernandez as he portrayed the masked Super Invader. This is notable at the PPV event WrestleWar '92.
The WWE has always listed the attendance for this show as 93,173, thereby making it the indoor attendance record for any sporting event in United States history. This figure is inflated, as the actual attendance for the show is somewhere around 78,000 (still a very high figure, and still the attendance record for the Pontiac Silverdome, host of this show). People who work for the Silverdome and worked at the show that day can confirm this, stating that the building literally can't house any more people than about 78,000, thus making the figure that the WWE has stated impossible.
Final WWF PPV appearance for The Iron Sheik until SummerSlam 1991, and his last WWF PPV match under the Iron Sheik name until the Gimmick Battle Royal at WrestleMania XVII in 2001, which would be his final PPV match ever.