Hello Down There 1969

Synopsis:

Given the chance to live in a simulated underwater home for a month, a scientist convinces his family to take advantage of the offer. Once the family agrees to move in, underwater mayhem occurs!

Directed by: Ricou Browning & Jack Arnold
Written by: John McGreevey & Frank Telford
Runtime: 88 minutes
Tagline: A combo of scuba dupes rock up a storm in a mad pad under the surf!
Cast:
Tony Randall
Tony Randall
Fred Miller 
Janet Leigh
Janet Leigh
Vivian Miller 
Ken Berry
Ken Berry
Mel Cheever 
Roddy McDowall
Roddy McDowall
Nate Ashbury 
Charlotte Rae
Charlotte Rae
Myrtle Ruth 
Richard Dreyfuss
Richard Dreyfuss
Harold Webster