his dressing room at CBS Studios in Los Angeles and ran to the stage during Corden’s introductions.

He then planted quite an impressive smooch on Corden’s lips that lasted several seconds.

Gordon-Levitt walked off, feeling triumphant, and left Corden there alone to try and collect himself.

‘Wow! He really came at me with some force,’ a stunned Corden said, laughing. ‘I don’t even know how to carry on.’