Not certain these bouncy and tipsy letters are a font. If so I hope someone spots it for you.
Here are some fonts I like in this style.
Three from Filmotype: Orlando http://www.myfonts.com/fonts/filmotype/orlando/Filmotype Parade http://www.myfonts.com/fonts/filmotype/parade/ and Panama http://www.myfonts.com/fonts/filmotype/panama/
Brian Bonislawsky's Mother Hen http://www.myfonts.com/fonts/astigmatic/mother-hen-aoe/
Andrew Lines' Jester http://www.myfonts.com/fonts/drewfonts/jester/
Bob Alonso's Yakety Yak http://www.myfonts.com/fonts/bagraphics/yakety-yak/
Alex Kaczun's Beatnik Barbie http://www.myfonts.com/fonts/typeinnovations/beatnik-barbie/ and Hippyfreak http://www.myfonts.com/fonts/typeinnovations/hippyfreak/
Jeremy Dooley's Kidela http://www.myfonts.com/fonts/insigne/kidela/
Tart Workshop's Sugarplum Sweet http://www.myfonts.com/fonts/tart-workshop/sugarplum/
Don

After careful close up looking (both o's are different etc) I think this is caligraphy and not a font, i.e. hand done.

This was a pretty small sample so I looked for more lettering from the end credits. Here is a collage of some of what I found.
Lots of variation in repeating letters. Even a font with many alternates would not do this. In my opinion this is definitely hand lettering. My recommendations for substitute fonts still seem appropriate.
Don

These suggestions are great Don, many thanks for taking the time to reply to my post in such a thorough way. You the man!

Matt