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).
Zac Efron's character Matt Brody is rumor to be based on Ryan Lochte after Lochte's scandal when he lost sponsorship deals but Efron stated to Jimmy Kimmel on Jimmy Kimmel Live! (2003) that he and Gordon came up with this character entirely on their own.
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).
David Hasselhoff and Pamela Anderson, who co-starred in the original show Baywatch (1989), make a brief appearance in the movie.
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.
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.
Priyanka Chopra has said that she was a huge fan of the original TV series Baywatch (1989) as a girl in India.
NFL players Arian Foster and Vernon Davis cameo as basketball players at the beginning of the film when Mitch is running along the beach. Foster is the one that Mitch blocks the shot of.
Baywatch began filming in Florida at the same beach where Lee Hodge worked as a real lifeguard.
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.
When Mitch is talking to Brody, Brody refers to Mitch as Aquaman. Jason Momoa starred on Baywatch (1989) and is also the current Aquaman in the DCEU. Yahya Abdul-Mateen II will also work with Momoa in Aquaman (2018) as Black Manta.
USCG Helicopter 6551 is in a few scenes. This aircraft is an active duty USCG helicopter.
This movie was made by Paramount Pictures despite the studio having no involvement in the original TV series, which is owned by FremantleMedia.
Kelly Brook was in talks to star in the film as CJ Parker, but she later denied the rumor. Kate Upton and Charlotte McKinney were on the short list for CJ before Kelly Rohrbach was cast, McKinney was later cast in the role of Julia.