Entertaiment refers to a broad range of activities designed for the enjoyment and amusement of an individual or group, or to provide an aesthetic effect. It can be as simple as watching a film for entertainment; or as complex as organising a banquet or performance for a thousand people. It may also include participation in games or sports for the enjoyment of others and may involve social interaction or learning. As with other forms of cultural expression, entertainment has evolved over time and has demonstrated a remarkable ability to cross over different media. This has helped to ensure the longevity of many familiar themes and images.