The 'Kiss You' singer - who split from the 23-year-old country music star in January after two months together - reportedly refers to their romance as a "pain in the a**e" and claims he hasn't dated anyone he wanted to have a serious relationship with since becoming famous.
According to the Daily Star Sunday newspaper, the 19-year-old British heartthrob admits in the band's documentary: "I haven't met a girl yet who I'd want to even think of getting serious with.
'"I think I've been unlucky in love so far. But then, I haven't really met anyone who's made the earth move for me.
"I'm longing to meet someone who really inspires me and makes me really want to spend time with them."
The 3D movie, which follows Harry and his band mates Niall Horan, 19, Zayn Malik, 20, Liam Payne, 19, Louis Tomlinson, 21, as they tour the world, is set to be released in August.
Harry split from Taylor, who penned her hit 'I Knew You Were Trouble' about him, after they had a massive bust-up on the British Virgin Island, Virgin Gorda in early January and she fled their plush resort early.
She has since been linked to Hawaiian surfer John John Florence, while Harry recently struck up a flirty friendship with Kesha via text message.
Log in with your social accounts:
Or, log in with your IrishCentral account:
Don't have an account yet? Register now !
Join IrishCentral with your social accounts:
Already have an account ? Log in
Or, sign up for an IrishCentral account below:
Make sure we gathered the correct information from you
You already have an account on IrishCentral! Please confirm you're the owner.
Our new policy requires our users to save a first and last name. Please update your account: