Director Rob Reiner's The Sure Thing is essentially It Happened One Night for the 1980s, but its lack of surprise in no way impedes its entertainment value. John Cusack plays Walter "Gib" Gibson, a self-involved college freshman who makes plans to head to California, there to touch base (and a few other things) with a "sure thing" played by Nicollette Sheridan. Likewise planning a westward journey is coed Alison Bradbury (Daphne Zuniga), a control freak who has a wealthy, stuffy fiancé over there. Gib and Alison despise one another on sight -- so naturally, they are compelled to travel to California together. The fact that everyone in the audience knows precisely how this one will end up is inconsequential; Cusack and Zuniga deliver such engaging performances that we're pulling for them to wise up and discover one another from the very first scene. One of the best bits: the mismatched couple being bombarded with an ear-piercing rendition of "The Age of Aquarius" by their dippy traveling companions.
~ Hal Erickson, All Movie Guide