Set twenty years after the original, this unexpected sequel sees Ewan McGregor’s Renton returning home to face the friends he betrayed years ago. Clearly a meaningful project for the filmmakers, director Danny Boyle infuses the movie with middle-age weariness and an endearing nostalgia, but at times it all feels too much like an adventure for the cast and crew themselves more than it does for the characters. As great as the four leads are – McGregor and Jonny Lee Miller’s chemistry is better than ever – T2 Trainspotting pales in comparison to its classic predecessor, lacking its vitality and rush and never quite making up for how entirely unnecessary it all feels.