Dragging a movie within the same page operates as always.
To another page in the project
The receiving page is selected and the dragged item is cut and moved from the original page and pasted into the receiving page. If the option key is down, a copy of the dragged item is pasted into this page.
To another application
The movie’s file information will be made available to any applications that accepts interapplication drop and drag transactions.
From another application
Since movies are alias’ to files, ProView will open the movie from that file.
From the finder
Either a single movie file or multiple movie files may be dragged into a ProView page. A single file will be opened as a normal “add movie.” When multiple files are dropped, all of the movies will be added to this page.