United Kingdom, April 1 -- Paul Giamatti has a secret Instagram account but he refuses to join TikTok because it's "terrifying".

'The Holdovers' star, 57, has admitted he dabbles with social media and has set up an account on the image-sharing platform, but he's decided to use a pseudonym to keep his posts private.

He told Radio Times magazine: "I am on Instagram, although only my friends know it's me."

However, Paul refuses to join video platform TikTok because he finds the concept of its never-ending loop to be "strange and troubling".

She said: "My girlfriend is heavily into TikTok but I don't want to engage in that. That endless scroll and loop is terrifying.

"The second that you're confronted with algorithms and nudges, you feel...