Before Slumdog Millionaire and 28 Days Later, Danny Boyle dragged us into Scottish drug addiction with Trainspotting. It's a perfect encapsulation of club life flirting with damnation, but more importantly it proves the Ewan McGregor is still a heart throb when wearing a half-shirt. Plus, it has one of the best soundtracks of any film to date, hands down.

How long has it been since you saw the most disgusting toilet scene ever filmed or watched a whacked-out Ewan hallucinate his way through detox?

Let's revisit the cult classic tonight, on the fabulous Sundown at Granada rooftop. It's the third installment of Mixmaster's joint project with the Dallas Film Society and the Sundown, and yeah, it's completely free. There will be drink specials and comfy couches to sink into while your skin crawls faster than that creepy ceiling baby. The film starts at 8 p.m., but get there early for a good seat and a cocktail.

• Film and TV