Unlike most Hollywood stars, Dev Patel is approachable. And we mean that in the best possible way. While other done-good-Brits become untouchable gods of the Tinseltown variety, you can still see yourself sharing a pint with Patel - and copying his looks.

So prepare to take note. At the Toronto International Film Festival this weekend, the Hotel Mumbai star found a new way to don a rollneck: underneath a Harrington jacket, courtesy of Ermenegildo Zegna. While the menswear essential has so often been an alternative to a shirt within a formal look, Patel proves that it works just as well on the off-duty.

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Bear Grylls//Digital Spy


The rules are straightforward, too. Go simple on the pieces elsewhere, and contrast your colour palette for something more memorable. So cream for navy, black for grey and so forth. What's more, it's a foolproof way to layer as the cruel summer dies out - and is much smarter than the bog standard T-shirt or sweater.

Fancy upgrading your own look ahead of autumn? Make like Hollywood's most humble son below.

dev patel
Salle Privée

Ewen Shell Jacket, £460, mrporter.com

SHOP

Mr Porter
dev patel
Altea

Rollneck Sweater, £260, matchesfashion.com

SHOP

Matches Fashion
dev patel
Incotex

Pleated Trousers, £270, mrporter.com

SHOP

Mr Porter
dev patel
Wild Bunch

Classic 5 Eyelet Shoe, £175, endclothing.com

SHOP

End Clothing