When considering family movies, you should look for films that are appropriate for the age range of your audience and consider movies that include subjects the audience is interested in watching. These movies are typically intended for a wide range of viewers, rather than movies for kids that are usually aimed primarily at younger children. As you are looking for movies for your family, you should consider numerous books and websites that provide listings and reviews of movies, and look for movies with subjects or storylines similar to what your audience has enjoyed in the past.
Family movies are those films intended for a wide range of audience ages and preferences. In the US, for example, these movies are usually rated G for general audiences or PG for parental guidance, but usually exclude higher ratings such as R for restricted audiences. You can use these ratings guidelines to help you consider different movies and have a sense of what audience they may be appropriate for. If you see a movie with animated characters, but notice that it has a higher rating such as PG-13, meaning it is intended primarily for people over the age of 13, then you should typically not choose this movie for an audience with young children.
On the other hand, you do not want to choose family movies that are purely intended for young children, which are likely to bore older children and parents. There are numerous books and websites you can use with lists of different family films and reviews posted of each movie. These lists can give you a sense of how friendly such movies are for kids and adults, and also an idea of the actual content. Some of these sites even detail each specific usage of language or imagery that may be too intense for younger viewers, which can help you choose the most appropriate family movies possible.
You should also consider the types of family movies your audience has enjoyed in the past. If you know that most of the group enjoys fantasy films, for example, then you should look for more movies with fantasy themes and settings. Just about every genre represented in adult or young adult films can be found in some form for younger viewers as well. Considering the preferences of your audience can help you choose a movie that appeals to as much of your audience as possible.