Zac Efron gave Dwayne Johnson all the names to call him in the movie, like One Direction.
In an interview, Priyanka Chopra said that the role of the main antagonist was written for a man, but the director changed the role and the script upon meeting her.
After scathing reviews poured in from critics and fans alike, Dwayne Johnson tweeted that the film wasn't made for critics.
Nina Dobrev, Ashley Benson, Alexandra Shipp, Shelley Hennig, Bianca A. Santos, and Denyse Tontz were considered for the role of Summer.
In December 2016, Paramount pushed the release date back one week to May 26, 2017, to avoid competition with Alien: Covenant (2017).
The second film with Dwayne Johnson and Alexandra Daddario. The two worked together on San Andreas (2015).
Dwayne Johnson is the tenth professional wrestler to work on Baywatch, and the first wrestler turned actor who didn't appear on the show. Jorge Gonzáles, Jimmy Hart, Hulk Hogan, Randy Savage, Ric Flair, Leon White, Kevin Sullivan, Shawn Michaels, and Torrie Wilson appeared as guest stars on Baywatch (1989).
Priyanka Chopra has said that she was a huge fan of the original TV series Baywatch (1989) as a girl in India.
At one point, Mitch admits he hit rock bottom. "Rock Bottom" was the name of Dwayne Johnson's wrestling finishing move when he was known as The Rock in WWE.
Baywatch began filming in Florida at the same beach where Lee Hodge worked as a real lifeguard.
One of the names that Mitch (Dwayne Johnson), calls Brody (Zac Efron) is "High School Musical". Efron got his start in acting as a lead in the High School Musical series.
Dwayne Johnson (Mitch) played father of Alexandra Daddario (Summer) in San Andreas 2015 in which he saves her life.
This movie was made by Paramount Pictures despite the studio having no involvement in the original TV series, which is owned by FremantleMedia.
During a fight sequence the theme song to the animated series SpongeBob SquarePants (1999) is heard. SpongeBob is owned by Nickelodeon and Viacom and the original actor from the original Baywatch (1989) David Hasselhoff guest stared as himself in The SpongeBob SquarePants Movie (2004) released 14 years earlier.
USCG Helicopter 6551 is in a few scenes. This aircraft is an active duty USCG helicopter.