Where to Watch
Region
Apple TV Store
Rent from
HD
$3.99
Apple TV Store
Buy from
HD
$5.99
Amazon Video
Rent from
HD
$3.99
Amazon Video
Buy from
HD
$5.99
Starz Amazon Channel
Stream included
HD
Included
See all 12 options →
Prices last updated September 26, 2026. Pricing and availability may vary by region.
powered by JustWatch
About
To impress a beautiful girl, Harold Kelp, the grandson of professor Julius Kelp, who created a potion to transform his personality, gets his hands on his grandfather's secret elixir and unleashes his destructive alter ego, Jack.
Theatrical
Nov 24, 2008
DVD / Blu-ray
Nov 25, 2008
Directors
Writer
Producers
Studio
Kaleidoscope TWC, Rainmaker Entertainment, The Weinstein Company, Mainframe Entertainment
Latest
See all
Movie News
Best Eddie Murphy Movies
Eddie Murphy is one of the greatest stand-up comics and movie stars of all time! The Oscar-nominated actor's films have...
Jimmy Kimmel to Host the 95th Oscars
Given that the first time Jimmy Kimmel hosted the Oscars, we got the memorable ‘La La Land’/’Moonlight’ Best Picture mix...
