i have been trying to remember the name of a particular movie but i couldn't.

there is a young boy in the movie and he is going to marry a woman. but he is very shy. when he is alone in a forest, he practices proposing and attaches the wedding ring to a branch. but infact that is the arm of a skeleton. after that they go to underworld, the world of deads.

something like this. i need help!

thanks