My 6 year old doesn't like many movies, but he sure loved the Pirates Cove version with Bindi Irwin. It's a real winner in our house. I can't speak for the other three movies, but I'll be buying this package instead of the individual movie, as all four are included. You can't beat that.
If 鶹.com is to be believed, then this is the product description. I don't know why it wasn't included on this site.
"Free Willy, Free Willy 2: The Adventure Home, Free Willy 3: The Rescue, and Free Willy: Escape from Pirate's Cove
FREE WILLY INCLUDES: - Widescreen Version [16x9 2.4:1] - Michael Jackson Will You Be There? Music Video / Whale Ballet Montage / A Conversation with Wildlife Cinematographer Bob Talbot / Escape the Nets and A Whale's Tale Challenges / Free Willy Movie Trailer Gallery / Languages: English & Français / Subtitles: English, Français & Español (Main Feature. Bonus Material/Trailer May Not Be Subtitled).
FREE WILLY 2: THE ADVENTURE HOME INCLUDES: - Widescreen Version [16x9 2.4:1] / Behind-the-Scenes Featurette / Michael Jackson's Childhood Music Montage / Free Willy Movie Trailer Gallery / Languages: English & Français (Dubbed in Quebec) / Subtitles: English, Français & Español (Main Feature. Bonus Material/Trailer May Not Be Subtitled).
FREE WILLY 3: THE RESCUE INCLUDES: - Full-Screen Version / A Fun, Up-Close Look at Orcas / Free Willy Movie Trailer Gallery / Languages: English & Français (Dubbed in Quebec) / Subtitles: English, Français & Español (Main Feature. Bonus Material/Trailer May Not Be Subtitled).
FREE WILLY: ESCAPE FROM PIRATE'S COVE INCLUDES: - Widescreen Version [16x9 1.85:1] / On the Set of Free Willy: Greetings from South Africa / Bindi Irwin and Willy Invite All to Meet My Wild Co-Stars / Bindi's First Movie Video Diary / Additional Scenes / Gag Reel / Languages: English & Français / Subtitles: English, Français & Español (Main Feature. Bonus Material/Trailer May Not Be Subtitled). "
Not sure if the link will publish, but I found this info here: http://www.amazon.com/Free-Willy-Collection-Favorites-Adventure/dp/B003PIUIHE/ref=sr_1_1?ie=UTF8&qid=1303500262&sr=8-1