Twenty years after its release, Albert Brooks’s third feature is still such a hilarious send-up of yuppie mentality that it might have been made yesterday. Brooks plays an obnoxious west-coast ad executive who’s so enraged when he fails to get an expected promotion that he quits his job, persuades his wife (Julie Hagerty) to do the same, and, spurred by fond memories of Easy Rider, takes off with her in a newly purchased Winnebago. As they travel cross-country with their $200,000 nest egg, an unforeseen disaster sends them deeper into the heart of the heartland than they’d counted on. All of Brooks’s comedies are good, but he hasn’t yet surpassed the first threeReal Life (1979), Modern Romance (1981), and this one. Director Garry Marshall has a great cameo as a Las Vegas casino owner, and Monica Johnson collaborated with Brooks on the script. R, 91 min. (JR)