Why i have to drag my movie to GNOME Player to watch it ?
 

When i double click the movie i have to watch in slacko puppy linux then it dosen't start due to which i have to first open the GNOME player then drag the movie on to it to watch it?

This assumes you are using Gnome

1. right click on the file icon
2. select "properties" from the menu
3. Select the Open With tab
4. select the player you want as the default
5. press the Make Default button

^ Slacko puppy doesn't come with Gnome. Though the suggestion you mentioned should work.

Regards.