A film crew shooting a movie where there is a local lore about a mummy. The main actor gets a call that his wife is having a baby.he can't get the mummy suit off. On the way to the hospital he runs into the real mummy.locals now are after him. Comedy I saw in late 80s. Possibly made for TV.

It's from a weekly show in the 80's called "Amazing Stories" by Steven Speilberg. One of my favorites.