lingo-l constraining to the bitmap of a sprite

Dear listees, I am working on a movie that represents a tangoing couple dancing with in a perspective screen. I have scaled them via an index of the y co-ordinate. The floor of the ballroom is of course a rhombus. The constrain behaviour work with the bounding box of the containing sprite. Hence

lingo-l Thanks! and another :(

Thanks list for the help for jumping to a particular marker in a movie. I am beginning to suspect the inbuilt behaviours are not the help they first seem:( I have a set of bitmap members representing a tango dancing couple. all goes well with the direction changes e.g. keycode for left arrow