Boy, Did I Get a Wrong Number!(1966)

Overview:

Tom Meade mistakenly dials the gorgeous European film star Didi at her Oregon hotel. Didi, who has escaped Hollywood to avoid being typecast as a bombshell, takes up Meade's offer to hide away at his backwoods cabin. Meade, with the help of his housekeeper, goes to absurd lengths to help the actress evade discovery by both the public and his suspicious wife.