Cactus Flower (1969)

Comedy Movie based on Broadway Play. Bachelor dentist (Walter Mathtau) lies to his lover (Goldie Hawn) that he is married so that he can enjoy an affair with a future graceful exit. But he falls in love. In his weak attempts to tell the truth he ends up expanding his lie to include a nasty divorce from a fictitious wife. But the lover demands to meet the wife ! So our hero the dentist hires his secretary (Ingrid Bergman) to pose as his fictitious wife. Such a delightful mess. Clever script and just an awesome cast of talent ! Well worth watching despite going back in time 40 years ! 104 min of fun.