Ok that is, by far, the most incredible, weird, brilliant, cannot stop watching piece of cinema / art / just how much effort did you put into a throw away joke

Ok that is, by far, the most incredible, weird, brilliant, cannot stop watching piece of cinema / art / just how much effort did you put into a throw away joke ... I mean they actually had a divemaster for an underwater sequence, ... just brilliant :-) Thank you for introducing me to this. I hope to pay it forward.