"The lights are back—shall we let the audience in?"… The Cannes blackout and the art of continuity across multiple venues

A blackout is among the worst emergencies imaginable at a major film festival or festival watched by the world. On the morning of 24 May 2025, the closing day of the 78th Cannes Film Festival, a power outage did indeed affect the Cannes area. The organiser’s official statement offers an instructive example of crisis management. It clearly distinguished the main venue, the Palais des Festivals, which immediately switched to an independent power supply and continued operating normally, from the outlying Cineum cinema, where screenings were paused until power was restored.

As the on-site safety and equipment-control principles in "Case Article Review" also explain, crisis response across physically separate venues should never be an all-or-nothing choice between cancelling everything and pressing ahead everywhere. A clear operational judgement that separates and controls each venue’s power infrastructure is what prevents widespread confusion.

1. Decouple operating status: one festival, two clocks

A projector running at the Palais does not justify telling the audience at Cineum that the festival has returned to normal.

• Infrastructure independence by venue: The organiser activated the backup generators installed at the Palais des Festivals, protecting the press conferences and evening closing ceremony. It did not use that success to group other screening rooms, where generator connections were taking longer, into a blanket announcement of normal operation. When an emergency occurs, the planning team should assess the recovery speed of each building and space individually rather than treat the entire festival as a single unit.

2. A hard stop: a working screen is not the same as a safe space

Even when a radio message confirms that electricity has returned and the screen is on again, the waiting audience should not immediately be ushered inside.

• Requirements for approval to resume: A working picture does not make a space fit for an audience if emergency exit lighting, visibility along evacuation routes, fire-alarm connections and HVAC have not all been fully restored. Readmission should depend on the final cross-check and sign-off of the person responsible for overall venue safety, rather than isolated reports from the lighting or video team.

3. Target audience messages precisely

One of the riskiest announcements is a vague request to “Please wait while power is being restored.”

• Specify the location and status: People already inside and those still outside need different information. For an audience currently waiting, communicate a clear cut-off: “We cannot guarantee when restoration will be complete, so we will arrange for you to leave or receive a refund.” For ticket holders who have not yet set off for the next session, send a precise notice such as “The 15:00 screening in Cineum Screen 2 has been cancelled.” Inventing an uncertain restoration time invites a second wave of complaints.

4. A four-stage protocol for crisis response across multiple venues

When a blackout or emergency affects a large event using several spaces simultaneously, the practical team should follow these four stages.

Planner’s memo: effective response means quickly deciding where to stop

When power fails at an event, a planner can feel an urgent need to keep everything going somehow. A capable operations lead, however, avoids jeopardising the whole event in an attempt to save every part. Within the infrastructure already prepared, they calmly distinguish what can continue from what must stop immediately.

Cannes protected the grand closing ceremony at the Palais while decisively suspending screenings at Cineum. That decision illustrates why the planner’s most important tool in a crisis is a clear separation and control of the situation, rather than unrealistic promises that prolong uncertainty.