Whatever happened to the boy who played Oliver in the 1968 film musical? What year was the first Alien film released? The Internet Movie Database (IMDb) has all the answers. As the world's largest collection of TV and film trivia with a database of some 1.5 million films and TV shows, IMDb can satisfy a vast majority of obscure film-related questions. This app is for any household incapable of finishing a film without squabbling over the name of the supporting actor and other films he has starred in.

A good music-streaming application is a must-have for anyone who loves music, whether the app is downloaded onto a desktop, tablet or smartphone. Music-streaming apps allow users to listen to their favorite music on-demand via the Web, without the irritation of endless adverts. There are a number of good streaming applications out there, but Spotify continues to improve and is available on desktops, a number of smartphones, and the iPad. In addition to providing online music streaming, Spotify allows users to play back tunes when offline, and the mobile app offers smooth syncing with the desktop app.

One of the most celebrated apps to be released in recent months, Word Lens instantly translates printed words in one language into another using the phone's built-in video camera. For example, the user is traveling abroad and cannot understand what a sign says. He or she points the iPhone or iPad camera at the sign, and the English translation will immediately appear on the screen overlaying the initial image using augmented reality. At the moment the application only provides translation between English and Spanish, but the application's creators -- augmented-reality app development firm Quest Visual Inc. -- promises more European languages in due course.