For a start, it stars The Rock (not a fan). Then it stars Zac Efron (not a fan). Finally, and you may have missed this important point, it's Baywatch.
Did you ever see the TV show? Did you?
And they made a movie of that?
Oh yeah, this was going to be a real relationship tester. This could even be the last time Someone would get to pick a film...
But then the film starts. And there are a few chuckles.
Then a few more.
Then another one.
And within 20 minutes, enjoyment is being had. Positive feelings are being experienced.
This is actually FUN!
Because, and this becomes apparent very quickly, not only are the cast clearly having a blast running about in those famous costumes in slow motion, but this film is made with genuine affection for the source material.
Now, granted, we're not creating high art here, and the TV show was dumb as a sack of Trump University certificates, but that really doesn't matter when what we have here is a thoroughly enjoyable comedy.
The plot (bad people doing bad things must be stopped) is thinner than a really thin thing on a very thin day, but again this really doesn't matter.
But this is being played for laughs.
And much like 21 Jump Street before it, Baywatch is as much lampooning the TV show as displaying great affection for it.
And to his eternal credit, Dwayne Johnson absolutely shines as Mitch Buchannon (the role that made The Hoff the star he is today).
He has a surprisingly deft comic touch, and with the likes of Jon Bass alongside him helps inject a lot of the lighthearted moments - all played with a very straight bat.
Now the real stars of the original show were always the women.
Not because of their acting talents, let's be honest.
Casting centred on how well they filled out those iconic red suits.
And to be fair, the female cast this time around are not unpleasing on the eye.
However, they come with the added bonus of actually being able to act - and act well.
Ilfenesh Hadera, Kelly Rohrbach and Alexandra Daddario (who even looks a tad Yasmine Bleethie) are all up to the task of giving their male counterparts a run for their money, and again clearly having a lot of fun doing so.
There is, of course one, tiny fly in the ointment.
OK, I get that he looks buff and ripped (and whatever other phrases you young folks use these days), but he's acted off the screen by the sand for crying out loud.
His is the one character with a back story. The one character with actual depth. And yet he manages to look like he won the part in a charity raffle.
To be honest, though, that is really a minor gripe, and Baywatch is so much fun that even Zac fails to spoil it.
Now, let's be clear about this - this is not a great film.
The plot, as mentioned, is near non-existent and the budget clearly went on the cast rather than the special effects.
But none of that really matters when you're sitting in your seat just grinning from ear to ear.
In fact, towards the end I was so caught up in the action that I actually got tense while someone fumbled under a boat for plot reasons.
Now that was never meant to happen.
Recently, there have been a few films that I was really looking forward to but left feeling disappointed.
To go in to a film expecting nothing and come out grinning was nothing short of a miracle.
Sure, Baywatch won't change your life - but there are far worse ways to spend an evening.