Interactive movies are proposed as a new type of media produced by combinin
g new trends found in movies, communications, and games. With interactive m
ovies, we are able to build cyberspaces rich to the feeling of presence by
applying computer graphics and 3D observation, and to get the feeling of co
mplete immersion in these spaces, as if we were actually in them. In additi
on, it is possible to experience stories through interaction with other cha
racters in the spaces. We first explain the concept of interactive movies a
nd describe a first prototype system that we have developed. We then descri
be the construction of a second system, which we are currently developing,
as well as several improvements in the system.