Weird Science (Cult classic 80ties movie)

Weird Science is a 1985 American teen science fantasy comedy film written and directed by John Hughes and starring Anthony Michael Hall, Ilan Mitchell-Smith and Kelly LeBrock

Nerdy social outcast students Gary Wallace and Wyatt Donnelly of Shermer High School are humiliated by senior jocks Ian and Max for swooning over their cheerleader girlfriends Deb and Hilly. Humiliated and disappointed at their direction in life and wanting more, Gary convinces the uptight Wyatt that they need a boost in popularity in order to win their crushes away from Ian and Max. Alone for the weekend with Wyatt's parents gone, Gary is inspired by the 1931 film Frankenstein to create a virtual woman using Wyatt's computer, infusing her with everything they can conceive of to make the perfect dream woman.

After they hook electrodes to a doll and hack into a government computer system for more power, a power surge creates Lisa, a beautiful and intelligent woman with reality-altering powers. She promptly produces a pink 1959 Cadillac Eldorado convertible to take the boys to a blues dive bar in Chicago, using her powers to procure fake IDs for them.

They return home drunk, where Chet, Wyatt's mean older brother, extorts $175 from Wyatt in exchange for his silence. Lisa agrees to keep herself hidden from him, but she realizes that Gary and Wyatt, while sweet, are very uptight and need to unwind. After another humiliating experience at the mall when Max and Ian pour a slushie on Gary and Wyatt in front of a crowd, Lisa tells the bullies about a party at Wyatt's house, before driving off in a Porsche 928 she conjured for Gary.

Despite Wyatt's protests, Lisa insists that the party take place. She meets Gary's parents, Al and Lucy, who are shocked and dismayed at the things she says and her frank manner, to Gary's embarrassment. After she pulls a stainless steel .44 Magnum handgun on them (later revealed to Gary to be a water pistol), she alters their memories so that Lucy forgets about the conflict; however, Al forgets altogether that they have a son.