Charlie Day reveals which It's Always Sunny co-star could fit into

Charlie Day and Chris Pratt have revealed which co-stars could fit into the world of The Super Mario Bros Movie, released in cinemas this week.

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WATCH: Rob McElhenney reveals Wrexham's latest sponsor in hilarious social media post with 'It's Always Sunny' co-stars Glenn Howerton and Charlie Day

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Charlie Day and Glenn Howerton Talk 'It's Always Sunny