The actor was not prepared when he watched the movie for the first time.
You dont even know what awkward is, Travolta told Corden during the interview.
Nor do you, he added to fellow guest,Sam Taylor-Johnson.

John Travolta and Kelly Preston.Credit: ANNE-CHRISTINE POUJOULAT/AFP via Getty Images
I had no idea.
The actor plays authorJames Freyin the drama based onFreys controversial bookof the same name.
It tells the story of a drug-addicted man who goes to rehab hoping to beat his addictions.

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Youngs character, Lilly, is a woman he meets while both are in rehab.
Watch the full confession between the stars, below.