[pdftex] animations inside a pdf

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Hi everybody
 Do you know if it is possible to inser an animation inside a pdf (Flash clip, or animated GIF), and, if yes, how it can be done with pdflatex ?
 Is it possible to generate a figure and to make it move with pdflatex ?
 I am currently trying to prepare a presentation with pdflatex. I have found the beamer class http://latex-beamer.sourceforge.net/ . Do you use it ? What is better for this kind of document ?
 Loads of questions, sorry...
 H
 
		
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