Don’t bother. It’s rubbish.
It’s like someone in late 1992 thought “What if we made a film like Wayne’s World, but with all the charm boiled out of it and the lead character made into an entitled jerk?”, then slipped through a time vortex back to 1986 and made it.
(Admittedly, a more parsimonious explanation would that someone in the early 1990s thought “What if we made a film like Ferris Bueller but with wit, charm and all-round good-nature?”, since that doesn’t involve time travel.)
A film where his sister Jeannie was the protagonist could have been much more interesting. But a film about a guy who is literally too cool for school, and who expresses that by always doing exactly what he wants with no regard for the consequences — for himself or others — is boring.
Also: these characters:
Cameron: I don’t know what I’m gonna do.
Cameron: Yeah, but to do what?
Sloane: What are you interested in?
Sloane: Me neither!
Is there anything more boring that people who aren’t interested in anything?
So that was a wasted evening. I should have stayed with Plan A and re-watched a few episodes of Rick and Morty.