Dance as an art form has always suffered from a lack of sensible definition. On the flip side, Dance has the ability to converse well with other art forms, and with other domains of knowledge.
Here are two recent videos posted on Vimeo that support both these thoughts. The first films a team of free runners in such a theatrical way as to bring the work into the realm of dance. The second combines visual arts and dance movement, again, in theatrical space and time. Both videos use filmic devices to abstract and manipulate the body in space.
Is this dance fusion? or dance film? or art performance? or just film/video that uses choreography and the body?