First Men in the Moon

1964 sci-fi film directed by Nathan Juran and starring Edward Judd, Martha Hyer, and Lionel Jeffries.

H.G. Wells story about Victorian era scientists who devise a way to propel themselves to the moon is filled with comic relief thanks to Jeffries.

Fun and entertaining and suitable for the kids.

http://www.imdb.com/title/tt0058100/