Photo Movie Maker - Slideshow is an iPhone app that allows users to create movies using their own sound, photos, and videos. With this app, users can easily insert videos into their slideshows, adding a dynamic element to their movies.

The app offers a range of features to enhance the movie-making experience. Users can choose videos and photos from their Camera roll, and set the duration of each photo. They can add anywhere from one to more than 100 photos to their movie. Additionally, users have the option to add music from their iPod or iPhone, as well as from movies in their Camera roll.

One unique feature of Photo Movie Maker - Slideshow is the ability to record your own voice and add it to the movie. This allows for a personalized touch, making the movie even more special. The app also offers various sound effects, including pitch shift, speed change, voice changer, and echo, adding creativity and versatility to the movie-making process.

Using the app is straightforward. Users first need to set the sound by either recording their voice, selecting music from their iPod library, or choosing a video from their Camera roll. It's important to note that the length of the movie will be determined by the length of the selected sound. Additionally, users are advised not to use copyright protected music.

Next, users can set the photos for their movie. They can either take a photo or select pictures from their Camera roll. Once all the elements are in place, users can simply push a button to generate the video, which will then be saved into their Camera roll.

Overall, Photo Movie Maker - Slideshow offers a user-friendly and versatile platform for creating movies from sound, photos, and videos. With its range of features and easy-to-use interface, it is a great tool for anyone looking to create personalized and dynamic movies on their iPhone.