That Guy Loves Me, Am I Supposed to Believe That? (1969)

When pretty young Tony discovers she doesn't have the money to pay for the rent on her place in Berlin, she decides to hitchhike to Munich. On the way she meets a somewhat shady antiques dealer and an inventor who is working on something he calls the "dryski"--the opposite of a "water ski". Attracted to both these men, Tony has to decide which one she really wants to be with.