The movie's about using terrorism, and in particular, bombing, to shake up the establishment. In the wake of recent terrorist bombings, it's not a great thing for impressionable minds to be exposed to. As far as other content, violence is limited to two scenes, the explosion that kills Stevie, and Winnie's subsequent stabbing of her husband. If for some reason your kids want to see this one, we suggest you read through the category listings before allowing them to do so. A carriage driver asks Stevie if he's been drinking after he jumps from a moving carriage.
People drink and smoke in a small pub on several occasions.
Chief Inspector Heat's hand is bloody and he looks up to see a nearby tree soaked in blood. Later, Stevie's head is seen up in the tree. Heat later inspects the body and pulls up the sheet revealing a bloody leg with big chunks taken out of it. Verloc's body is very bloody and Tom slips on the nearby bloody steps and falls back to the first floor. Verloc tells Vladmir that recently he had sent him plans to assassinate the Grand Duke.