Children Shouldn't Play with Dead Things (1973)

Six friends dig up a corpse named Orville. They use it in a satanic ritual to make the dead rise from their graves. Look out!!!

Director:

 Bob Clark (as Benjamin Clark)

Writers:

 Alan Ormsby (screenplay), Bob Clark (as Benjamin Clark)

Stars:

 Alan Ormsby, Valerie Mamches, Jeff Gillen - via IMDB 

https://archive.org/details/ChildrenShouldntPlayWithDeadThings_201501