He took his then-girlfriend to see a movie at the cinema, but ended up leaving with her bestfriend whom he's now married to.
When Gordon Olley went to see A Hard Day's Night with his girlfriend in 1964, little did he know that he would later be walking out of the cinema with another woman on his arm.
Now, the 67-year-old has taken his wife Mary, 65, to watch the Beatles film which they saw on their first 'date' at the same cinema in Dereham, Norfolk, exactly 50 years ago.
He was just 17 when he took his then-girlfriend, Edna, to watch the movie on August 30, 1964 - but she had asked him to buy an extra ticket for her best friend Mary, who was then just 15.
Mr and Mrs Olley left together and then started going out. And on Saturday, he recreated the date - without Edna - by hiring out Dereham Cinema, to celebrate half a century of being with his wife.
The day out was a surprise to Mrs Olley, who said: "Gordon gave me a card on my birthday, on August 19, with a note saying you will have a surprise day out on August 30.
"I never expected anything like this. When I got out of the car and saw the balloons at the cinema I just burst into tears. It's a lovely thing to do and it brought back so many golden memories."
Mrs Olley said of their first get-together: "My friend Edna was going out with Gordon at the time and she asked me to join them at the cinema. We all went in together and I came out with him.
"I stayed good friends with Edna afterwards so she was okay with everything."
Their second date was a dance at Swaffham Assembly Rooms a week later, before they went to the cinema in King’s Lynn on their third outing.
Mr Olley proposed at Aylsham Market a year later. And on August 19, 1967, her 18th birthday - three years after that first date - they married.