WATCH: Benedict Cumberbatch and Tom Holland on Magic Breakfast

Benedict Cumberbatch and Tom Holland joined Ronan and Harriet to talk about Marvel's most epic blockbuster yet; Avengers: Infinity War.

But priorities in order, we thought a quick guess of Magic's Mystery Sound was the best way to get things started!

Watch below to see the funniest guess we've had so far this year, care of Tom:

Guess done and dusted (and with the £30,000 prize money still up for grabs - phew!), it was time to talk preparing for their roles, life on set and the unbelievable way that Tom discovered he'd been given another of his most famous roles as Spider-man.

See all of this – plus the big secret that Benedict has been keeping from Tom below:

Listen to Ronan and Harriet on Magic Breakfast every weekday morning, 6am – 10am.